./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/stack_longer-1.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-vcloud-master/worker/run_dir_c1522485-34f0-4bb9-b9bc-46396b1d6dca/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c1522485-34f0-4bb9-b9bc-46396b1d6dca/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c1522485-34f0-4bb9-b9bc-46396b1d6dca/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c1522485-34f0-4bb9-b9bc-46396b1d6dca/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/stack_longer-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c1522485-34f0-4bb9-b9bc-46396b1d6dca/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c1522485-34f0-4bb9-b9bc-46396b1d6dca/bin/utaipan --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 13f29567e5bda53c24647cdbec0951bfcde74176 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-03 12:38:45,803 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 12:38:45,805 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 12:38:45,850 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 12:38:45,851 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 12:38:45,855 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 12:38:45,857 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 12:38:45,882 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 12:38:45,884 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 12:38:45,885 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 12:38:45,886 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 12:38:45,887 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 12:38:45,888 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 12:38:45,889 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 12:38:45,890 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 12:38:45,892 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 12:38:45,893 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 12:38:45,894 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 12:38:45,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 12:38:45,898 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 12:38:45,900 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 12:38:45,901 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 12:38:45,903 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 12:38:45,904 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 12:38:45,907 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 12:38:45,908 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 12:38:45,908 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 12:38:45,909 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 12:38:45,910 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 12:38:45,911 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 12:38:45,912 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 12:38:45,913 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 12:38:45,914 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 12:38:45,915 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 12:38:45,916 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 12:38:45,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 12:38:45,917 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 12:38:45,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 12:38:45,918 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 12:38:45,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 12:38:45,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 12:38:45,920 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c1522485-34f0-4bb9-b9bc-46396b1d6dca/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-03 12:38:45,944 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 12:38:45,945 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 12:38:45,945 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-03 12:38:45,946 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-03 12:38:45,946 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-03 12:38:45,946 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-03 12:38:45,946 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-03 12:38:45,947 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-03 12:38:45,947 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-03 12:38:45,947 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-03 12:38:45,947 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-03 12:38:45,947 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-03 12:38:45,948 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-03 12:38:45,948 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-03 12:38:45,948 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-03 12:38:45,949 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 12:38:45,949 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 12:38:45,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 12:38:45,950 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 12:38:45,950 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 12:38:45,950 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 12:38:45,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 12:38:45,951 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 12:38:45,951 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-03 12:38:45,951 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 12:38:45,951 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 12:38:45,951 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 12:38:45,952 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 12:38:45,952 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 12:38:45,952 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-03 12:38:45,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 12:38:45,953 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 12:38:45,953 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 12:38:45,953 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 12:38:45,953 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-03 12:38:45,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 12:38:45,954 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 12:38:45,954 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-03 12:38:45,954 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-03 12:38:45,954 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-vcloud-master/worker/run_dir_c1522485-34f0-4bb9-b9bc-46396b1d6dca/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c1522485-34f0-4bb9-b9bc-46396b1d6dca/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13f29567e5bda53c24647cdbec0951bfcde74176 [2020-12-03 12:38:46,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 12:38:46,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 12:38:46,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 12:38:46,216 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 12:38:46,221 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 12:38:46,222 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c1522485-34f0-4bb9-b9bc-46396b1d6dca/bin/utaipan/../../sv-benchmarks/c/pthread/stack_longer-1.i [2020-12-03 12:38:46,327 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c1522485-34f0-4bb9-b9bc-46396b1d6dca/bin/utaipan/data/8f245cae3/394cae3f20ac4855adeb2b3d606a9ae7/FLAGfc9f870f9 [2020-12-03 12:38:46,898 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 12:38:46,898 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c1522485-34f0-4bb9-b9bc-46396b1d6dca/sv-benchmarks/c/pthread/stack_longer-1.i [2020-12-03 12:38:46,916 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c1522485-34f0-4bb9-b9bc-46396b1d6dca/bin/utaipan/data/8f245cae3/394cae3f20ac4855adeb2b3d606a9ae7/FLAGfc9f870f9 [2020-12-03 12:38:47,157 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c1522485-34f0-4bb9-b9bc-46396b1d6dca/bin/utaipan/data/8f245cae3/394cae3f20ac4855adeb2b3d606a9ae7 [2020-12-03 12:38:47,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 12:38:47,161 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 12:38:47,163 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 12:38:47,163 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 12:38:47,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 12:38:47,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:38:47" (1/1) ... [2020-12-03 12:38:47,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51385961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:47, skipping insertion in model container [2020-12-03 12:38:47,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:38:47" (1/1) ... [2020-12-03 12:38:47,177 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 12:38:47,230 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 12:38:47,645 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_c1522485-34f0-4bb9-b9bc-46396b1d6dca/sv-benchmarks/c/pthread/stack_longer-1.i[41527,41540] [2020-12-03 12:38:47,671 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:38:47,683 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 12:38:47,723 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_c1522485-34f0-4bb9-b9bc-46396b1d6dca/sv-benchmarks/c/pthread/stack_longer-1.i[41527,41540] [2020-12-03 12:38:47,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:38:47,909 INFO L208 MainTranslator]: Completed translation [2020-12-03 12:38:47,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:47 WrapperNode [2020-12-03 12:38:47,910 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 12:38:47,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 12:38:47,912 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 12:38:47,912 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 12:38:47,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:47" (1/1) ... [2020-12-03 12:38:47,951 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:47" (1/1) ... [2020-12-03 12:38:47,991 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 12:38:47,992 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 12:38:48,005 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 12:38:48,006 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 12:38:48,015 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:47" (1/1) ... [2020-12-03 12:38:48,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:47" (1/1) ... [2020-12-03 12:38:48,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:47" (1/1) ... [2020-12-03 12:38:48,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:47" (1/1) ... [2020-12-03 12:38:48,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:47" (1/1) ... [2020-12-03 12:38:48,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:47" (1/1) ... [2020-12-03 12:38:48,052 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:47" (1/1) ... [2020-12-03 12:38:48,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 12:38:48,056 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 12:38:48,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 12:38:48,057 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 12:38:48,062 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1522485-34f0-4bb9-b9bc-46396b1d6dca/bin/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 [2020-12-03 12:38:48,135 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-12-03 12:38:48,135 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-12-03 12:38:48,135 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-12-03 12:38:48,135 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-12-03 12:38:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-03 12:38:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-03 12:38:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-03 12:38:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-03 12:38:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-12-03 12:38:48,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-03 12:38:48,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 12:38:48,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 12:38:48,139 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-03 12:38:48,662 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 12:38:48,662 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2020-12-03 12:38:48,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:38:48 BoogieIcfgContainer [2020-12-03 12:38:48,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 12:38:48,666 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-03 12:38:48,666 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-03 12:38:48,670 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-03 12:38:48,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 12:38:47" (1/3) ... [2020-12-03 12:38:48,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ec9bd4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:38:48, skipping insertion in model container [2020-12-03 12:38:48,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:38:47" (2/3) ... [2020-12-03 12:38:48,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ec9bd4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:38:48, skipping insertion in model container [2020-12-03 12:38:48,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:38:48" (3/3) ... [2020-12-03 12:38:48,673 INFO L111 eAbstractionObserver]: Analyzing ICFG stack_longer-1.i [2020-12-03 12:38:48,687 WARN L169 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-03 12:38:48,687 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-03 12:38:48,691 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-03 12:38:48,692 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-03 12:38:48,740 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,741 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,741 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,741 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,741 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,744 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,744 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,744 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,746 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,746 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,747 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,747 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,747 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,747 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,748 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,748 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,749 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,749 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,749 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,750 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,750 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,750 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,750 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,751 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,751 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,752 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,753 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,753 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,753 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,753 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,753 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,754 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,754 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,754 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,755 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,755 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,755 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,755 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,755 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,756 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,756 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,756 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,756 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,756 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,757 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,757 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,757 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,757 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,757 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,758 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,758 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,758 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,758 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,758 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,759 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,759 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,759 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,760 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,760 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,760 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,760 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,761 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,761 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,761 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,761 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,761 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,762 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,762 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,762 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,762 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,762 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,763 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,763 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,763 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,764 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,764 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,764 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,764 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,764 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,765 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,765 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,767 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,768 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,770 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,770 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,771 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,771 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,771 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,771 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,772 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,772 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,772 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,773 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,773 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,773 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,783 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,783 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,784 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,784 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,784 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,784 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,784 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,785 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,785 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,785 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,785 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,785 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,785 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,785 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,786 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,786 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,787 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,787 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,787 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,788 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,788 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,788 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,788 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,788 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,789 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,789 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,789 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,789 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,789 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,789 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,790 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,790 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,790 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,791 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,791 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,791 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,791 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,791 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,791 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,791 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,792 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,794 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,794 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,794 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,795 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,795 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,796 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,796 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,796 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,796 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,796 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,797 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,797 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,797 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,798 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,798 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,798 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,799 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,800 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,800 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,800 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,800 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,801 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,801 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,803 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,804 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,805 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,805 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,805 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,805 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,805 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,806 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,806 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,806 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,806 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,806 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,806 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,806 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,807 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,807 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,807 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,807 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,807 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,807 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,807 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,807 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,808 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,808 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,808 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,808 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,808 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,808 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,808 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,809 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,809 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,809 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,809 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,809 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,809 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,809 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,810 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,810 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,810 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,810 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,810 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,811 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,811 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,811 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,811 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,811 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,811 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,812 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,812 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,812 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,814 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,818 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,818 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,819 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,819 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,819 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,819 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,819 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,819 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,820 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,820 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,832 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,832 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,832 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,833 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,833 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,833 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,833 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,833 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,833 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,834 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,834 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,834 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,834 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,834 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,834 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,834 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,835 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,835 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,835 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,835 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,835 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,835 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,835 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,836 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,836 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,836 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,836 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,836 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,836 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,837 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,837 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,837 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,837 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,837 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,837 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,837 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,838 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,838 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,838 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,838 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,838 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,838 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,838 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,839 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,839 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,839 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,841 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,841 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,841 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,841 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,842 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,842 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,842 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,842 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,842 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,842 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,842 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,843 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,843 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,843 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,843 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,843 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,843 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,844 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,844 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,844 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,844 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,844 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,844 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,848 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,849 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,849 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,849 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,849 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,849 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,849 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,849 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,850 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,850 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,850 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,850 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,857 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,857 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,857 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,857 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,857 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,857 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,858 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-03 12:38:48,863 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-12-03 12:38:48,873 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-12-03 12:38:48,909 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-03 12:38:48,909 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-03 12:38:48,910 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-03 12:38:48,910 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-03 12:38:48,910 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-03 12:38:48,910 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-03 12:38:48,910 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-03 12:38:48,910 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-03 12:38:48,924 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-03 12:38:48,926 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 146 places, 151 transitions, 324 flow [2020-12-03 12:38:48,928 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 146 places, 151 transitions, 324 flow [2020-12-03 12:38:48,930 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 146 places, 151 transitions, 324 flow [2020-12-03 12:38:49,028 INFO L129 PetriNetUnfolder]: 11/151 cut-off events. [2020-12-03 12:38:49,028 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-12-03 12:38:49,042 INFO L84 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 151 events. 11/151 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 394 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 115. Up to 3 conditions per place. [2020-12-03 12:38:49,051 INFO L116 LiptonReduction]: Number of co-enabled transitions 6764 [2020-12-03 12:38:52,330 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2020-12-03 12:38:52,538 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2020-12-03 12:38:53,702 WARN L197 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2020-12-03 12:38:53,863 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-12-03 12:38:54,160 WARN L197 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2020-12-03 12:38:54,286 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-12-03 12:38:55,599 WARN L197 SmtUtils]: Spent 787.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 130 [2020-12-03 12:38:55,947 WARN L197 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-12-03 12:38:56,806 WARN L197 SmtUtils]: Spent 858.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 130 [2020-12-03 12:38:57,144 WARN L197 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-12-03 12:38:58,012 WARN L197 SmtUtils]: Spent 486.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-12-03 12:38:58,407 WARN L197 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-12-03 12:38:58,917 WARN L197 SmtUtils]: Spent 508.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-12-03 12:38:59,293 WARN L197 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-12-03 12:38:59,325 INFO L131 LiptonReduction]: Checked pairs total: 11180 [2020-12-03 12:38:59,325 INFO L133 LiptonReduction]: Total number of compositions: 137 [2020-12-03 12:38:59,331 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 40 transitions, 102 flow [2020-12-03 12:38:59,369 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 335 states. [2020-12-03 12:38:59,371 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states. [2020-12-03 12:38:59,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-03 12:38:59,379 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:38:59,380 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-03 12:38:59,381 INFO L429 AbstractCegarLoop]: === Iteration 1 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:38:59,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:38:59,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1175818681, now seen corresponding path program 1 times [2020-12-03 12:38:59,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:38:59,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955161601] [2020-12-03 12:38:59,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:38:59,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:38:59,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:38:59,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955161601] [2020-12-03 12:38:59,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:38:59,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-03 12:38:59,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499896420] [2020-12-03 12:38:59,708 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:38:59,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:38:59,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:38:59,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:38:59,723 INFO L87 Difference]: Start difference. First operand 335 states. Second operand 3 states. [2020-12-03 12:38:59,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:38:59,797 INFO L93 Difference]: Finished difference Result 602 states and 1541 transitions. [2020-12-03 12:38:59,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:38:59,799 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-03 12:38:59,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:38:59,818 INFO L225 Difference]: With dead ends: 602 [2020-12-03 12:38:59,819 INFO L226 Difference]: Without dead ends: 580 [2020-12-03 12:38:59,820 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 [2020-12-03 12:38:59,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-12-03 12:38:59,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 427. [2020-12-03 12:38:59,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2020-12-03 12:38:59,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 1148 transitions. [2020-12-03 12:38:59,920 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 1148 transitions. Word has length 6 [2020-12-03 12:38:59,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:38:59,920 INFO L481 AbstractCegarLoop]: Abstraction has 427 states and 1148 transitions. [2020-12-03 12:38:59,920 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:38:59,920 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 1148 transitions. [2020-12-03 12:38:59,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-03 12:38:59,922 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:38:59,922 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:38:59,922 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-03 12:38:59,922 INFO L429 AbstractCegarLoop]: === Iteration 2 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:38:59,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:38:59,926 INFO L82 PathProgramCache]: Analyzing trace with hash -746189653, now seen corresponding path program 1 times [2020-12-03 12:38:59,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:38:59,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782228000] [2020-12-03 12:38:59,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:38:59,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:39:00,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:39:00,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782228000] [2020-12-03 12:39:00,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:39:00,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-03 12:39:00,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253297196] [2020-12-03 12:39:00,015 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:39:00,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:39:00,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:39:00,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:39:00,016 INFO L87 Difference]: Start difference. First operand 427 states and 1148 transitions. Second operand 3 states. [2020-12-03 12:39:00,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:39:00,044 INFO L93 Difference]: Finished difference Result 530 states and 1370 transitions. [2020-12-03 12:39:00,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:39:00,044 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-03 12:39:00,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:39:00,049 INFO L225 Difference]: With dead ends: 530 [2020-12-03 12:39:00,049 INFO L226 Difference]: Without dead ends: 508 [2020-12-03 12:39:00,049 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 [2020-12-03 12:39:00,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2020-12-03 12:39:00,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 468. [2020-12-03 12:39:00,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2020-12-03 12:39:00,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 1250 transitions. [2020-12-03 12:39:00,096 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 1250 transitions. Word has length 8 [2020-12-03 12:39:00,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:39:00,101 INFO L481 AbstractCegarLoop]: Abstraction has 468 states and 1250 transitions. [2020-12-03 12:39:00,101 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:39:00,101 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 1250 transitions. [2020-12-03 12:39:00,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-03 12:39:00,103 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:39:00,103 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:39:00,103 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-03 12:39:00,104 INFO L429 AbstractCegarLoop]: === Iteration 3 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:39:00,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:39:00,104 INFO L82 PathProgramCache]: Analyzing trace with hash 171618117, now seen corresponding path program 1 times [2020-12-03 12:39:00,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:39:00,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321262888] [2020-12-03 12:39:00,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:39:00,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:39:00,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:39:00,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321262888] [2020-12-03 12:39:00,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:39:00,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-03 12:39:00,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830306057] [2020-12-03 12:39:00,200 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:39:00,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:39:00,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:39:00,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:39:00,201 INFO L87 Difference]: Start difference. First operand 468 states and 1250 transitions. Second operand 3 states. [2020-12-03 12:39:00,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:39:00,222 INFO L93 Difference]: Finished difference Result 504 states and 1343 transitions. [2020-12-03 12:39:00,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:39:00,222 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-03 12:39:00,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:39:00,228 INFO L225 Difference]: With dead ends: 504 [2020-12-03 12:39:00,229 INFO L226 Difference]: Without dead ends: 504 [2020-12-03 12:39:00,229 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 [2020-12-03 12:39:00,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-12-03 12:39:00,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 504. [2020-12-03 12:39:00,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 504 states. [2020-12-03 12:39:00,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 1343 transitions. [2020-12-03 12:39:00,256 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 1343 transitions. Word has length 10 [2020-12-03 12:39:00,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:39:00,257 INFO L481 AbstractCegarLoop]: Abstraction has 504 states and 1343 transitions. [2020-12-03 12:39:00,257 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:39:00,257 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 1343 transitions. [2020-12-03 12:39:00,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-03 12:39:00,264 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:39:00,265 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:39:00,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-03 12:39:00,265 INFO L429 AbstractCegarLoop]: === Iteration 4 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:39:00,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:39:00,266 INFO L82 PathProgramCache]: Analyzing trace with hash 113384386, now seen corresponding path program 1 times [2020-12-03 12:39:00,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:39:00,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528845356] [2020-12-03 12:39:00,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:39:00,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:39:00,395 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:39:00,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528845356] [2020-12-03 12:39:00,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062102229] [2020-12-03 12:39:00,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c1522485-34f0-4bb9-b9bc-46396b1d6dca/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-03 12:39:00,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:39:00,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-03 12:39:00,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 12:39:00,620 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:39:00,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-03 12:39:00,708 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:39:00,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [746178797] [2020-12-03 12:39:00,714 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:294) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:269) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:213) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:111) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:289) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:189) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:138) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:380) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) 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:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-12-03 12:39:00,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-12-03 12:39:00,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2020-12-03 12:39:00,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457434458] [2020-12-03 12:39:00,717 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-03 12:39:00,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:39:00,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-03 12:39:00,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-12-03 12:39:00,718 INFO L87 Difference]: Start difference. First operand 504 states and 1343 transitions. Second operand 10 states. [2020-12-03 12:39:01,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:39:01,019 INFO L93 Difference]: Finished difference Result 1250 states and 3210 transitions. [2020-12-03 12:39:01,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-03 12:39:01,020 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2020-12-03 12:39:01,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:39:01,030 INFO L225 Difference]: With dead ends: 1250 [2020-12-03 12:39:01,030 INFO L226 Difference]: Without dead ends: 1250 [2020-12-03 12:39:01,030 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2020-12-03 12:39:01,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2020-12-03 12:39:01,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 904. [2020-12-03 12:39:01,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 904 states. [2020-12-03 12:39:01,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 2416 transitions. [2020-12-03 12:39:01,067 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 2416 transitions. Word has length 14 [2020-12-03 12:39:01,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:39:01,067 INFO L481 AbstractCegarLoop]: Abstraction has 904 states and 2416 transitions. [2020-12-03 12:39:01,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-03 12:39:01,067 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 2416 transitions. [2020-12-03 12:39:01,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-03 12:39:01,068 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:39:01,068 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:39:01,281 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-03 12:39:01,281 INFO L429 AbstractCegarLoop]: === Iteration 5 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:39:01,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:39:01,282 INFO L82 PathProgramCache]: Analyzing trace with hash -1640129873, now seen corresponding path program 1 times [2020-12-03 12:39:01,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:39:01,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023305319] [2020-12-03 12:39:01,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:39:01,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:39:01,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:39:01,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023305319] [2020-12-03 12:39:01,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:39:01,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-03 12:39:01,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698702975] [2020-12-03 12:39:01,342 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:39:01,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:39:01,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:39:01,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:39:01,344 INFO L87 Difference]: Start difference. First operand 904 states and 2416 transitions. Second operand 3 states. [2020-12-03 12:39:01,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:39:01,380 INFO L93 Difference]: Finished difference Result 439 states and 991 transitions. [2020-12-03 12:39:01,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:39:01,381 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-12-03 12:39:01,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:39:01,384 INFO L225 Difference]: With dead ends: 439 [2020-12-03 12:39:01,384 INFO L226 Difference]: Without dead ends: 435 [2020-12-03 12:39:01,385 INFO L677 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 [2020-12-03 12:39:01,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2020-12-03 12:39:01,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 403. [2020-12-03 12:39:01,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2020-12-03 12:39:01,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 899 transitions. [2020-12-03 12:39:01,404 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 899 transitions. Word has length 16 [2020-12-03 12:39:01,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:39:01,404 INFO L481 AbstractCegarLoop]: Abstraction has 403 states and 899 transitions. [2020-12-03 12:39:01,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:39:01,404 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 899 transitions. [2020-12-03 12:39:01,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-03 12:39:01,405 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:39:01,405 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:39:01,406 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-03 12:39:01,406 INFO L429 AbstractCegarLoop]: === Iteration 6 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:39:01,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:39:01,406 INFO L82 PathProgramCache]: Analyzing trace with hash -927782877, now seen corresponding path program 1 times [2020-12-03 12:39:01,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:39:01,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350434959] [2020-12-03 12:39:01,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:39:01,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:39:01,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:39:01,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350434959] [2020-12-03 12:39:01,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:39:01,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-03 12:39:01,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089272490] [2020-12-03 12:39:01,515 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-03 12:39:01,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:39:01,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-03 12:39:01,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:39:01,516 INFO L87 Difference]: Start difference. First operand 403 states and 899 transitions. Second operand 5 states. [2020-12-03 12:39:01,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:39:01,609 INFO L93 Difference]: Finished difference Result 563 states and 1255 transitions. [2020-12-03 12:39:01,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-03 12:39:01,610 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-12-03 12:39:01,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:39:01,614 INFO L225 Difference]: With dead ends: 563 [2020-12-03 12:39:01,614 INFO L226 Difference]: Without dead ends: 563 [2020-12-03 12:39:01,614 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-03 12:39:01,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2020-12-03 12:39:01,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 441. [2020-12-03 12:39:01,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2020-12-03 12:39:01,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 990 transitions. [2020-12-03 12:39:01,628 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 990 transitions. Word has length 17 [2020-12-03 12:39:01,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:39:01,629 INFO L481 AbstractCegarLoop]: Abstraction has 441 states and 990 transitions. [2020-12-03 12:39:01,629 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-03 12:39:01,629 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 990 transitions. [2020-12-03 12:39:01,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-03 12:39:01,630 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:39:01,630 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:39:01,630 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-03 12:39:01,630 INFO L429 AbstractCegarLoop]: === Iteration 7 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:39:01,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:39:01,631 INFO L82 PathProgramCache]: Analyzing trace with hash 1816159130, now seen corresponding path program 1 times [2020-12-03 12:39:01,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:39:01,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397954907] [2020-12-03 12:39:01,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:39:01,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:39:02,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:39:02,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397954907] [2020-12-03 12:39:02,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:39:02,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-03 12:39:02,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352479534] [2020-12-03 12:39:02,211 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-03 12:39:02,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:39:02,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-03 12:39:02,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-12-03 12:39:02,216 INFO L87 Difference]: Start difference. First operand 441 states and 990 transitions. Second operand 11 states. [2020-12-03 12:39:02,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:39:02,841 INFO L93 Difference]: Finished difference Result 741 states and 1649 transitions. [2020-12-03 12:39:02,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-03 12:39:02,842 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-12-03 12:39:02,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:39:02,847 INFO L225 Difference]: With dead ends: 741 [2020-12-03 12:39:02,848 INFO L226 Difference]: Without dead ends: 741 [2020-12-03 12:39:02,848 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-12-03 12:39:02,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2020-12-03 12:39:02,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 574. [2020-12-03 12:39:02,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 574 states. [2020-12-03 12:39:02,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 1328 transitions. [2020-12-03 12:39:02,868 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 1328 transitions. Word has length 21 [2020-12-03 12:39:02,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:39:02,868 INFO L481 AbstractCegarLoop]: Abstraction has 574 states and 1328 transitions. [2020-12-03 12:39:02,868 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-03 12:39:02,868 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 1328 transitions. [2020-12-03 12:39:02,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-03 12:39:02,869 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:39:02,869 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:39:02,869 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-03 12:39:02,870 INFO L429 AbstractCegarLoop]: === Iteration 8 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:39:02,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:39:02,870 INFO L82 PathProgramCache]: Analyzing trace with hash -288004952, now seen corresponding path program 2 times [2020-12-03 12:39:02,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:39:02,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550998841] [2020-12-03 12:39:02,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:39:02,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:39:03,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:39:03,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550998841] [2020-12-03 12:39:03,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:39:03,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-03 12:39:03,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697938180] [2020-12-03 12:39:03,358 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-03 12:39:03,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:39:03,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-03 12:39:03,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-12-03 12:39:03,359 INFO L87 Difference]: Start difference. First operand 574 states and 1328 transitions. Second operand 11 states. [2020-12-03 12:39:04,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:39:04,191 INFO L93 Difference]: Finished difference Result 861 states and 1950 transitions. [2020-12-03 12:39:04,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-03 12:39:04,192 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-12-03 12:39:04,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:39:04,198 INFO L225 Difference]: With dead ends: 861 [2020-12-03 12:39:04,198 INFO L226 Difference]: Without dead ends: 861 [2020-12-03 12:39:04,198 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2020-12-03 12:39:04,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2020-12-03 12:39:04,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 560. [2020-12-03 12:39:04,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-12-03 12:39:04,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 1291 transitions. [2020-12-03 12:39:04,217 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 1291 transitions. Word has length 21 [2020-12-03 12:39:04,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:39:04,218 INFO L481 AbstractCegarLoop]: Abstraction has 560 states and 1291 transitions. [2020-12-03 12:39:04,218 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-03 12:39:04,218 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 1291 transitions. [2020-12-03 12:39:04,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-03 12:39:04,220 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:39:04,220 INFO L422 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] [2020-12-03 12:39:04,220 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-03 12:39:04,220 INFO L429 AbstractCegarLoop]: === Iteration 9 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:39:04,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:39:04,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1495183089, now seen corresponding path program 1 times [2020-12-03 12:39:04,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:39:04,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097311953] [2020-12-03 12:39:04,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:39:04,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 12:39:04,297 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 12:39:04,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-03 12:39:04,381 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-03 12:39:04,415 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-03 12:39:04,415 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-03 12:39:04,416 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-03 12:39:04,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 12:39:04 BasicIcfg [2020-12-03 12:39:04,514 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-03 12:39:04,514 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 12:39:04,515 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 12:39:04,515 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 12:39:04,515 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:38:48" (3/4) ... [2020-12-03 12:39:04,518 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-03 12:39:04,618 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c1522485-34f0-4bb9-b9bc-46396b1d6dca/bin/utaipan/witness.graphml [2020-12-03 12:39:04,619 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 12:39:04,620 INFO L168 Benchmark]: Toolchain (without parser) took 17458.51 ms. Allocated memory was 117.4 MB in the beginning and 270.5 MB in the end (delta: 153.1 MB). Free memory was 80.3 MB in the beginning and 155.5 MB in the end (delta: -75.2 MB). Peak memory consumption was 77.0 MB. Max. memory is 16.1 GB. [2020-12-03 12:39:04,620 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 77.6 MB. Free memory was 35.4 MB in the beginning and 35.4 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:39:04,621 INFO L168 Benchmark]: CACSL2BoogieTranslator took 747.57 ms. Allocated memory is still 117.4 MB. Free memory was 80.1 MB in the beginning and 44.4 MB in the end (delta: 35.8 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. [2020-12-03 12:39:04,621 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.81 ms. Allocated memory is still 117.4 MB. Free memory was 44.4 MB in the beginning and 41.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 12:39:04,621 INFO L168 Benchmark]: Boogie Preprocessor took 63.70 ms. Allocated memory is still 117.4 MB. Free memory was 41.8 MB in the beginning and 91.5 MB in the end (delta: -49.6 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2020-12-03 12:39:04,622 INFO L168 Benchmark]: RCFGBuilder took 607.85 ms. Allocated memory was 117.4 MB in the beginning and 155.2 MB in the end (delta: 37.7 MB). Free memory was 91.4 MB in the beginning and 98.7 MB in the end (delta: -7.3 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. [2020-12-03 12:39:04,623 INFO L168 Benchmark]: TraceAbstraction took 15847.98 ms. Allocated memory was 155.2 MB in the beginning and 270.5 MB in the end (delta: 115.3 MB). Free memory was 98.7 MB in the beginning and 166.0 MB in the end (delta: -67.3 MB). Peak memory consumption was 50.1 MB. Max. memory is 16.1 GB. [2020-12-03 12:39:04,623 INFO L168 Benchmark]: Witness Printer took 104.38 ms. Allocated memory is still 270.5 MB. Free memory was 166.0 MB in the beginning and 155.5 MB in the end (delta: 10.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-03 12:39:04,626 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 77.6 MB. Free memory was 35.4 MB in the beginning and 35.4 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 747.57 ms. Allocated memory is still 117.4 MB. Free memory was 80.1 MB in the beginning and 44.4 MB in the end (delta: 35.8 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 79.81 ms. Allocated memory is still 117.4 MB. Free memory was 44.4 MB in the beginning and 41.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 63.70 ms. Allocated memory is still 117.4 MB. Free memory was 41.8 MB in the beginning and 91.5 MB in the end (delta: -49.6 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 607.85 ms. Allocated memory was 117.4 MB in the beginning and 155.2 MB in the end (delta: 37.7 MB). Free memory was 91.4 MB in the beginning and 98.7 MB in the end (delta: -7.3 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 15847.98 ms. Allocated memory was 155.2 MB in the beginning and 270.5 MB in the end (delta: 115.3 MB). Free memory was 98.7 MB in the beginning and 166.0 MB in the end (delta: -67.3 MB). Peak memory consumption was 50.1 MB. Max. memory is 16.1 GB. * Witness Printer took 104.38 ms. Allocated memory is still 270.5 MB. Free memory was 166.0 MB in the beginning and 155.5 MB in the end (delta: 10.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 4830 VarBasedMoverChecksPositive, 89 VarBasedMoverChecksNegative, 23 SemBasedMoverChecksPositive, 66 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.7s, 292 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 10.3s, 146 PlacesBefore, 40 PlacesAfterwards, 151 TransitionsBefore, 40 TransitionsAfterwards, 6764 CoEnabledTransitionPairs, 6 FixpointIterations, 30 TrivialSequentialCompositions, 87 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 5 ChoiceCompositions, 137 TotalNumberOfCompositions, 11180 MoverChecksTotal - CounterExampleResult [Line: 940]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L935] 0 static int top=0; [L936] 0 static unsigned int arr[(400)]; [L937] 0 pthread_mutex_t m; [L938] 0 _Bool flag=(0); [L1019] 0 pthread_t id1, id2; [L1021] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [arr={5:0}, flag=0, m={11:0}, top=0] [L988] 1 int i; [L989] 1 unsigned int tmp; [L990] 1 i=0 VAL [arr={5:0}, flag=0, m={11:0}, top=0] [L990] COND TRUE 1 i<(400) [L993] 1 tmp = __VERIFIER_nondet_uint() [L23] COND FALSE 1 !(!cond) [L1022] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [arr={5:0}, flag=0, m={11:0}, top=0] [L960] COND FALSE 1 !(top==(400)) [L952] 1 return top; [L1004] 2 int i; [L1005] 2 i=0 VAL [arr={5:0}, flag=0, m={11:0}, top=0] [L967] 1 stack[get_top()] = x [L944] 1 top++ [L970] 1 return 0; [L995] COND FALSE 1 !(push(arr,tmp)==(-1)) [L997] 1 flag=(1) VAL [arr={5:0}, flag=1, m={11:0}, top=1] [L990] 1 i++ VAL [arr={5:0}, flag=1, m={11:0}, top=1] [L1005] COND TRUE 2 i<(400) [L1008] COND TRUE 2 \read(flag) [L952] 2 return top; [L974] COND FALSE 2 !(get_top()==0) [L948] 2 top-- [L952] 2 return top; [L982] EXPR 2 stack[get_top()] [L982] 2 return stack[get_top()]; [L1010] COND FALSE 2 !(!(pop(arr)!=(-2))) [L1005] 2 i++ VAL [arr={5:0}, flag=1, m={11:0}, top=0] [L1005] COND TRUE 2 i<(400) [L1008] COND TRUE 2 \read(flag) [L952] 2 return top; [L974] COND TRUE 2 get_top()==0 [L977] 2 return (-2); [L1010] COND TRUE 2 !(pop(arr)!=(-2)) [L940] 2 reach_error() VAL [arr={5:0}, flag=1, m={11:0}, top=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 140 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.5s, OverallIterations: 9, TraceHistogramMax: 2, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.4s, HoareTripleCheckerStatistics: 358 SDtfs, 484 SDslu, 1034 SDs, 0 SdLazy, 726 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=904occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 1161 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 151 NumberOfCodeBlocks, 151 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 131 ConstructedInterpolants, 0 QuantifiedInterpolants, 28835 SizeOfPredicates, 1 NumberOfNonLiveVariables, 159 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 3/9 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 incorrect! Received shutdown request...