./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4970443-654c-4bfa-bfb0-7b16de26574f/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4970443-654c-4bfa-bfb0-7b16de26574f/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4970443-654c-4bfa-bfb0-7b16de26574f/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4970443-654c-4bfa-bfb0-7b16de26574f/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4970443-654c-4bfa-bfb0-7b16de26574f/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4970443-654c-4bfa-bfb0-7b16de26574f/bin/utaipan-vmNK8stdcF --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 22b51332425cd14048935a20a73abea0065b1633fac56d6d6be511ab67585236 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:21:32,110 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:21:32,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:21:32,157 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:21:32,157 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:21:32,161 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:21:32,164 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:21:32,168 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:21:32,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:21:32,179 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:21:32,180 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:21:32,181 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:21:32,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:21:32,182 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:21:32,184 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:21:32,185 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:21:32,187 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:21:32,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:21:32,195 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:21:32,198 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:21:32,200 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:21:32,204 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:21:32,206 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:21:32,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:21:32,212 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:21:32,219 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:21:32,219 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:21:32,221 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:21:32,222 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:21:32,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:21:32,225 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:21:32,226 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:21:32,228 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:21:32,229 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:21:32,231 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:21:32,231 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:21:32,232 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:21:32,232 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:21:32,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:21:32,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:21:32,234 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:21:32,235 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4970443-654c-4bfa-bfb0-7b16de26574f/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 22:21:32,287 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:21:32,287 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:21:32,289 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:21:32,289 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:21:32,289 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:21:32,290 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:21:32,290 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:21:32,290 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:21:32,296 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:21:32,297 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:21:32,298 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:21:32,298 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:21:32,299 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:21:32,299 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:21:32,299 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:21:32,299 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:21:32,300 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:21:32,300 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:21:32,301 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:21:32,301 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:21:32,301 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:21:32,301 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:21:32,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:21:32,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:21:32,302 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:21:32,302 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:21:32,303 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:21:32,303 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:21:32,303 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:21:32,303 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:21:32,304 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:21:32,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:21:32,304 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:21:32,305 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:21:32,305 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:21:32,305 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:21:32,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:21:32,306 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:21:32,306 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:21:32,306 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:21:32,306 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4970443-654c-4bfa-bfb0-7b16de26574f/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4970443-654c-4bfa-bfb0-7b16de26574f/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22b51332425cd14048935a20a73abea0065b1633fac56d6d6be511ab67585236 [2021-11-12 22:21:32,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:21:32,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:21:32,591 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:21:32,593 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:21:32,593 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:21:32,595 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4970443-654c-4bfa-bfb0-7b16de26574f/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2021-11-12 22:21:32,654 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4970443-654c-4bfa-bfb0-7b16de26574f/bin/utaipan-vmNK8stdcF/data/ef5a5ea7e/a81b1e13fd0743399dee84b11865b8d2/FLAG314a60a01 [2021-11-12 22:21:33,130 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:21:33,131 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4970443-654c-4bfa-bfb0-7b16de26574f/sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2021-11-12 22:21:33,139 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4970443-654c-4bfa-bfb0-7b16de26574f/bin/utaipan-vmNK8stdcF/data/ef5a5ea7e/a81b1e13fd0743399dee84b11865b8d2/FLAG314a60a01 [2021-11-12 22:21:33,530 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4970443-654c-4bfa-bfb0-7b16de26574f/bin/utaipan-vmNK8stdcF/data/ef5a5ea7e/a81b1e13fd0743399dee84b11865b8d2 [2021-11-12 22:21:33,533 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:21:33,534 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:21:33,536 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:21:33,536 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:21:33,545 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:21:33,546 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:21:33" (1/1) ... [2021-11-12 22:21:33,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f52f0c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:21:33, skipping insertion in model container [2021-11-12 22:21:33,548 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:21:33" (1/1) ... [2021-11-12 22:21:33,554 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:21:33,577 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:21:33,790 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4970443-654c-4bfa-bfb0-7b16de26574f/sv-benchmarks/c/weaver/parallel-barrier.wvr.c[4722,4735] [2021-11-12 22:21:33,793 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:21:33,801 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:21:33,833 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4970443-654c-4bfa-bfb0-7b16de26574f/sv-benchmarks/c/weaver/parallel-barrier.wvr.c[4722,4735] [2021-11-12 22:21:33,834 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:21:33,849 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:21:33,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:21:33 WrapperNode [2021-11-12 22:21:33,849 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:21:33,851 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:21:33,851 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:21:33,851 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:21:33,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:21:33" (1/1) ... [2021-11-12 22:21:33,888 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:21:33" (1/1) ... [2021-11-12 22:21:33,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:21:33,936 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:21:33,937 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:21:33,937 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:21:33,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:21:33" (1/1) ... [2021-11-12 22:21:33,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:21:33" (1/1) ... [2021-11-12 22:21:33,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:21:33" (1/1) ... [2021-11-12 22:21:33,960 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:21:33" (1/1) ... [2021-11-12 22:21:33,972 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:21:33" (1/1) ... [2021-11-12 22:21:33,986 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:21:33" (1/1) ... [2021-11-12 22:21:33,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:21:33" (1/1) ... [2021-11-12 22:21:33,993 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:21:34,000 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:21:34,000 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:21:34,000 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:21:34,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:21:33" (1/1) ... [2021-11-12 22:21:34,009 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:21:34,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4970443-654c-4bfa-bfb0-7b16de26574f/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:21:34,037 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4970443-654c-4bfa-bfb0-7b16de26574f/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:21:34,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4970443-654c-4bfa-bfb0-7b16de26574f/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:21:34,085 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-12 22:21:34,087 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-12 22:21:34,087 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-12 22:21:34,087 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-12 22:21:34,087 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-12 22:21:34,088 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-12 22:21:34,088 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-11-12 22:21:34,088 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-11-12 22:21:34,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-12 22:21:34,089 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-11-12 22:21:34,089 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-11-12 22:21:34,089 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2021-11-12 22:21:34,089 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2021-11-12 22:21:34,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:21:34,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-12 22:21:34,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-12 22:21:34,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-12 22:21:34,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:21:34,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:21:34,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-12 22:21:34,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:21:34,093 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-12 22:21:34,690 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:21:34,696 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 22:21:34,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:21:34 BoogieIcfgContainer [2021-11-12 22:21:34,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:21:34,702 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:21:34,702 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:21:34,705 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:21:34,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:21:33" (1/3) ... [2021-11-12 22:21:34,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c33fba7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:21:34, skipping insertion in model container [2021-11-12 22:21:34,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:21:33" (2/3) ... [2021-11-12 22:21:34,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c33fba7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:21:34, skipping insertion in model container [2021-11-12 22:21:34,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:21:34" (3/3) ... [2021-11-12 22:21:34,710 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-barrier.wvr.c [2021-11-12 22:21:34,715 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-12 22:21:34,715 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:21:34,715 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 22:21:34,715 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-12 22:21:34,766 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,767 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,767 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,768 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,768 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,768 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,768 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,769 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,769 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,769 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,769 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,769 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,770 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,770 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,770 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,770 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,770 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,771 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,771 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,771 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,771 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,771 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,772 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,772 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,772 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,772 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,772 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,772 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,773 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,773 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,773 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,773 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,773 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,774 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,774 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,774 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,774 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,774 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,775 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,775 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,775 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,775 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,775 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,776 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,776 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,776 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,776 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,776 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,776 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,777 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,777 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,777 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,778 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,778 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,778 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,778 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,778 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,778 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,779 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,779 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,779 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,779 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,779 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,780 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,780 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,780 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,780 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,780 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,780 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,781 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,781 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,781 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,781 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,781 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,781 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,782 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,782 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,782 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,783 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,789 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,789 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,796 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,797 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,797 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,800 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,800 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,800 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,800 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,801 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,801 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,801 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,801 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,802 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,802 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,802 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,802 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,802 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,803 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,803 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,803 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,803 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,803 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,804 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,804 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,804 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,804 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,804 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,804 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,805 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,805 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,805 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,805 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,805 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,806 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,806 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,806 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,806 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,806 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,806 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,807 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,807 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,807 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,807 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,807 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,807 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,808 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,808 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,808 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,808 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,808 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,808 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,809 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,809 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,809 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,809 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,809 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,810 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,810 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,810 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,810 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,810 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,810 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,811 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,813 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,814 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,814 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,814 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,814 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,814 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,814 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,815 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,815 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,815 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,815 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,815 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,816 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,816 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,816 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,816 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,816 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,816 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,817 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,817 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,817 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,817 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,817 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,817 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,818 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,818 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,818 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,818 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,819 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,819 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,820 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,820 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,820 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,821 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,822 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,822 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,822 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,823 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,823 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,823 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,823 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,835 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,835 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,835 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,835 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,836 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,837 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,837 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,838 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,839 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,839 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,839 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,839 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,840 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,840 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,841 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,842 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,844 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,845 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,845 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,845 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,847 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,847 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,850 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,852 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,853 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,853 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,853 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,854 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,854 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,854 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,854 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,854 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,854 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,855 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,855 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~nondet12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,855 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,855 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,855 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,855 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,856 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,856 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,856 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,857 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,857 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,858 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,858 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,858 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,858 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,859 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,859 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,859 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,859 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,860 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,860 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,860 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,860 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,861 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,861 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,861 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,862 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:21:34,890 INFO L148 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2021-11-12 22:21:34,948 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:21:34,964 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 22:21:34,965 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-12 22:21:34,982 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-12 22:21:34,995 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 246 places, 235 transitions, 542 flow [2021-11-12 22:21:34,998 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 246 places, 235 transitions, 542 flow [2021-11-12 22:21:35,000 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 246 places, 235 transitions, 542 flow [2021-11-12 22:21:35,184 INFO L129 PetriNetUnfolder]: 8/207 cut-off events. [2021-11-12 22:21:35,184 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-11-12 22:21:35,201 INFO L84 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 207 events. 8/207 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 243 event pairs, 0 based on Foata normal form. 0/198 useless extension candidates. Maximal degree in co-relation 177. Up to 3 conditions per place. [2021-11-12 22:21:35,209 INFO L116 LiptonReduction]: Number of co-enabled transitions 7736 [2021-11-12 22:21:41,760 INFO L131 LiptonReduction]: Checked pairs total: 43925 [2021-11-12 22:21:41,760 INFO L133 LiptonReduction]: Total number of compositions: 169 [2021-11-12 22:21:41,768 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 99 places, 86 transitions, 244 flow [2021-11-12 22:21:42,906 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 18624 states, 18623 states have (on average 4.349943618106642) internal successors, (81009), 18623 states have internal predecessors, (81009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:21:42,961 INFO L276 IsEmpty]: Start isEmpty. Operand has 18624 states, 18623 states have (on average 4.349943618106642) internal successors, (81009), 18623 states have internal predecessors, (81009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:21:43,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-12 22:21:43,230 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:21:43,230 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:21:43,232 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:21:43,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:21:43,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1047608425, now seen corresponding path program 1 times [2021-11-12 22:21:43,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:21:43,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693709802] [2021-11-12 22:21:43,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:21:43,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:21:43,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:21:43,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:21:43,434 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:21:43,435 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693709802] [2021-11-12 22:21:43,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693709802] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:21:43,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:21:43,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-12 22:21:43,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249444535] [2021-11-12 22:21:43,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:21:43,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 22:21:43,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:21:43,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 22:21:43,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:21:43,519 INFO L87 Difference]: Start difference. First operand has 18624 states, 18623 states have (on average 4.349943618106642) internal successors, (81009), 18623 states have internal predecessors, (81009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:21:44,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:21:44,130 INFO L93 Difference]: Finished difference Result 18624 states and 80623 transitions. [2021-11-12 22:21:44,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 22:21:44,133 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-11-12 22:21:44,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:21:44,708 INFO L225 Difference]: With dead ends: 18624 [2021-11-12 22:21:44,708 INFO L226 Difference]: Without dead ends: 18624 [2021-11-12 22:21:44,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:21:44,713 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.21ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 79.86ms IncrementalHoareTripleChecker+Time [2021-11-12 22:21:44,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 45 Unknown, 0 Unchecked, 1.21ms Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 79.86ms Time] [2021-11-12 22:21:44,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18624 states. [2021-11-12 22:21:45,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18624 to 18624. [2021-11-12 22:21:45,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18624 states, 18623 states have (on average 4.329216560167535) internal successors, (80623), 18623 states have internal predecessors, (80623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:21:46,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18624 states to 18624 states and 80623 transitions. [2021-11-12 22:21:46,275 INFO L78 Accepts]: Start accepts. Automaton has 18624 states and 80623 transitions. Word has length 55 [2021-11-12 22:21:46,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:21:46,276 INFO L470 AbstractCegarLoop]: Abstraction has 18624 states and 80623 transitions. [2021-11-12 22:21:46,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:21:46,278 INFO L276 IsEmpty]: Start isEmpty. Operand 18624 states and 80623 transitions. [2021-11-12 22:21:46,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:21:46,588 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:21:46,589 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:21:46,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-12 22:21:46,590 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:21:46,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:21:46,595 INFO L85 PathProgramCache]: Analyzing trace with hash 883482519, now seen corresponding path program 1 times [2021-11-12 22:21:46,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:21:46,598 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954482857] [2021-11-12 22:21:46,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:21:46,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:21:46,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:21:46,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:21:46,987 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:21:46,988 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954482857] [2021-11-12 22:21:46,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954482857] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:21:46,988 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:21:46,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-12 22:21:46,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80958775] [2021-11-12 22:21:46,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:21:46,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:21:46,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:21:46,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:21:46,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:21:46,997 INFO L87 Difference]: Start difference. First operand 18624 states and 80623 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:21:47,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:21:47,626 INFO L93 Difference]: Finished difference Result 17072 states and 73007 transitions. [2021-11-12 22:21:47,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:21:47,627 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:21:47,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:21:47,737 INFO L225 Difference]: With dead ends: 17072 [2021-11-12 22:21:47,738 INFO L226 Difference]: Without dead ends: 17072 [2021-11-12 22:21:47,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:21:47,741 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 76 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 127.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.56ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 154.09ms IncrementalHoareTripleChecker+Time [2021-11-12 22:21:47,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 77 Invalid, 151 Unknown, 0 Unchecked, 3.56ms Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 154.09ms Time] [2021-11-12 22:21:47,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17072 states. [2021-11-12 22:21:48,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17072 to 17072. [2021-11-12 22:21:48,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17072 states, 17071 states have (on average 4.276668033507117) internal successors, (73007), 17071 states have internal predecessors, (73007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:21:48,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17072 states to 17072 states and 73007 transitions. [2021-11-12 22:21:48,708 INFO L78 Accepts]: Start accepts. Automaton has 17072 states and 73007 transitions. Word has length 63 [2021-11-12 22:21:48,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:21:48,711 INFO L470 AbstractCegarLoop]: Abstraction has 17072 states and 73007 transitions. [2021-11-12 22:21:48,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:21:48,712 INFO L276 IsEmpty]: Start isEmpty. Operand 17072 states and 73007 transitions. [2021-11-12 22:21:48,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:21:48,784 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:21:48,785 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:21:48,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-12 22:21:48,785 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:21:48,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:21:48,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1245425439, now seen corresponding path program 2 times [2021-11-12 22:21:48,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:21:48,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850463092] [2021-11-12 22:21:48,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:21:48,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:21:49,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:21:49,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:21:49,943 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:21:49,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850463092] [2021-11-12 22:21:49,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850463092] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:21:49,943 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:21:49,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-11-12 22:21:49,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885393626] [2021-11-12 22:21:49,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:21:49,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-12 22:21:49,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:21:49,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-12 22:21:49,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=378, Unknown=0, NotChecked=0, Total=420 [2021-11-12 22:21:49,945 INFO L87 Difference]: Start difference. First operand 17072 states and 73007 transitions. Second operand has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:21:56,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:21:56,038 INFO L93 Difference]: Finished difference Result 29629 states and 124715 transitions. [2021-11-12 22:21:56,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-11-12 22:21:56,039 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:21:56,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:21:56,299 INFO L225 Difference]: With dead ends: 29629 [2021-11-12 22:21:56,299 INFO L226 Difference]: Without dead ends: 29358 [2021-11-12 22:21:56,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 398 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=207, Invalid=2145, Unknown=0, NotChecked=0, Total=2352 [2021-11-12 22:21:56,304 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 859 mSDsluCounter, 8200 mSDsCounter, 0 mSdLazyCounter, 8658 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3990.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 859 SdHoareTripleChecker+Valid, 2929 SdHoareTripleChecker+Invalid, 8707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 43.77ms SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 8658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4860.96ms IncrementalHoareTripleChecker+Time [2021-11-12 22:21:56,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [859 Valid, 2929 Invalid, 8707 Unknown, 0 Unchecked, 43.77ms Time], IncrementalHoareTripleChecker [49 Valid, 8658 Invalid, 0 Unknown, 0 Unchecked, 4860.96ms Time] [2021-11-12 22:21:56,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29358 states. [2021-11-12 22:21:57,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29358 to 17416. [2021-11-12 22:21:57,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17416 states, 17415 states have (on average 4.268217054263566) internal successors, (74331), 17415 states have internal predecessors, (74331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:21:57,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17416 states to 17416 states and 74331 transitions. [2021-11-12 22:21:57,592 INFO L78 Accepts]: Start accepts. Automaton has 17416 states and 74331 transitions. Word has length 63 [2021-11-12 22:21:57,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:21:57,594 INFO L470 AbstractCegarLoop]: Abstraction has 17416 states and 74331 transitions. [2021-11-12 22:21:57,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:21:57,594 INFO L276 IsEmpty]: Start isEmpty. Operand 17416 states and 74331 transitions. [2021-11-12 22:21:57,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:21:57,720 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:21:57,720 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:21:57,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-12 22:21:57,721 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:21:57,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:21:57,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1297371203, now seen corresponding path program 3 times [2021-11-12 22:21:57,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:21:57,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969476681] [2021-11-12 22:21:57,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:21:57,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:21:57,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:21:58,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:21:58,539 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:21:58,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969476681] [2021-11-12 22:21:58,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969476681] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:21:58,539 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:21:58,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-11-12 22:21:58,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029268178] [2021-11-12 22:21:58,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:21:58,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-12 22:21:58,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:21:58,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-12 22:21:58,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2021-11-12 22:21:58,541 INFO L87 Difference]: Start difference. First operand 17416 states and 74331 transitions. Second operand has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:22:04,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:22:04,532 INFO L93 Difference]: Finished difference Result 33359 states and 141238 transitions. [2021-11-12 22:22:04,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-11-12 22:22:04,533 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:22:04,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:22:04,960 INFO L225 Difference]: With dead ends: 33359 [2021-11-12 22:22:04,960 INFO L226 Difference]: Without dead ends: 33106 [2021-11-12 22:22:04,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 927 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=329, Invalid=3577, Unknown=0, NotChecked=0, Total=3906 [2021-11-12 22:22:04,964 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 1137 mSDsluCounter, 8860 mSDsCounter, 0 mSdLazyCounter, 9629 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3832.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 3169 SdHoareTripleChecker+Invalid, 9711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 31.72ms SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 9629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4529.55ms IncrementalHoareTripleChecker+Time [2021-11-12 22:22:04,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1137 Valid, 3169 Invalid, 9711 Unknown, 0 Unchecked, 31.72ms Time], IncrementalHoareTripleChecker [82 Valid, 9629 Invalid, 0 Unknown, 0 Unchecked, 4529.55ms Time] [2021-11-12 22:22:05,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33106 states. [2021-11-12 22:22:05,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33106 to 17380. [2021-11-12 22:22:05,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17380 states, 17379 states have (on average 4.2685424938143735) internal successors, (74183), 17379 states have internal predecessors, (74183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:22:05,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17380 states to 17380 states and 74183 transitions. [2021-11-12 22:22:05,957 INFO L78 Accepts]: Start accepts. Automaton has 17380 states and 74183 transitions. Word has length 63 [2021-11-12 22:22:05,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:22:05,958 INFO L470 AbstractCegarLoop]: Abstraction has 17380 states and 74183 transitions. [2021-11-12 22:22:05,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:22:05,958 INFO L276 IsEmpty]: Start isEmpty. Operand 17380 states and 74183 transitions. [2021-11-12 22:22:06,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:22:06,005 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:22:06,005 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:22:06,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-12 22:22:06,005 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:22:06,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:22:06,010 INFO L85 PathProgramCache]: Analyzing trace with hash -132883241, now seen corresponding path program 4 times [2021-11-12 22:22:06,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:22:06,012 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160311658] [2021-11-12 22:22:06,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:22:06,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:22:06,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:22:06,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:22:06,724 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:22:06,724 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160311658] [2021-11-12 22:22:06,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160311658] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:22:06,724 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:22:06,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-11-12 22:22:06,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309468028] [2021-11-12 22:22:06,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:22:06,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-12 22:22:06,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:22:06,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-12 22:22:06,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2021-11-12 22:22:06,726 INFO L87 Difference]: Start difference. First operand 17380 states and 74183 transitions. Second operand has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:22:12,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:22:12,935 INFO L93 Difference]: Finished difference Result 33465 states and 142197 transitions. [2021-11-12 22:22:12,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-11-12 22:22:12,935 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:22:12,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:22:13,043 INFO L225 Difference]: With dead ends: 33465 [2021-11-12 22:22:13,043 INFO L226 Difference]: Without dead ends: 33176 [2021-11-12 22:22:13,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 928 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=330, Invalid=3576, Unknown=0, NotChecked=0, Total=3906 [2021-11-12 22:22:13,045 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 1041 mSDsluCounter, 9905 mSDsCounter, 0 mSdLazyCounter, 10865 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3919.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 3497 SdHoareTripleChecker+Invalid, 10939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 32.86ms SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 10865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4644.82ms IncrementalHoareTripleChecker+Time [2021-11-12 22:22:13,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1041 Valid, 3497 Invalid, 10939 Unknown, 0 Unchecked, 32.86ms Time], IncrementalHoareTripleChecker [74 Valid, 10865 Invalid, 0 Unknown, 0 Unchecked, 4644.82ms Time] [2021-11-12 22:22:13,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33176 states. [2021-11-12 22:22:13,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33176 to 17344. [2021-11-12 22:22:13,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17344 states, 17343 states have (on average 4.268869284437526) internal successors, (74035), 17343 states have internal predecessors, (74035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:22:13,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17344 states to 17344 states and 74035 transitions. [2021-11-12 22:22:13,968 INFO L78 Accepts]: Start accepts. Automaton has 17344 states and 74035 transitions. Word has length 63 [2021-11-12 22:22:13,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:22:13,968 INFO L470 AbstractCegarLoop]: Abstraction has 17344 states and 74035 transitions. [2021-11-12 22:22:13,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:22:13,969 INFO L276 IsEmpty]: Start isEmpty. Operand 17344 states and 74035 transitions. [2021-11-12 22:22:14,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:22:14,016 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:22:14,016 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:22:14,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-12 22:22:14,017 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:22:14,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:22:14,018 INFO L85 PathProgramCache]: Analyzing trace with hash 229743421, now seen corresponding path program 5 times [2021-11-12 22:22:14,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:22:14,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456802362] [2021-11-12 22:22:14,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:22:14,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:22:14,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:22:14,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:22:14,656 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:22:14,657 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456802362] [2021-11-12 22:22:14,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456802362] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:22:14,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:22:14,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-11-12 22:22:14,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672391030] [2021-11-12 22:22:14,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:22:14,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-12 22:22:14,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:22:14,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-12 22:22:14,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2021-11-12 22:22:14,659 INFO L87 Difference]: Start difference. First operand 17344 states and 74035 transitions. Second operand has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:22:21,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:22:21,330 INFO L93 Difference]: Finished difference Result 33395 states and 141316 transitions. [2021-11-12 22:22:21,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-11-12 22:22:21,330 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:22:21,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:22:21,436 INFO L225 Difference]: With dead ends: 33395 [2021-11-12 22:22:21,436 INFO L226 Difference]: Without dead ends: 33034 [2021-11-12 22:22:21,438 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 968 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=340, Invalid=3692, Unknown=0, NotChecked=0, Total=4032 [2021-11-12 22:22:21,439 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 1015 mSDsluCounter, 10602 mSDsCounter, 0 mSdLazyCounter, 11361 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4474.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 3708 SdHoareTripleChecker+Invalid, 11434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 36.32ms SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 11361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5239.11ms IncrementalHoareTripleChecker+Time [2021-11-12 22:22:21,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1015 Valid, 3708 Invalid, 11434 Unknown, 0 Unchecked, 36.32ms Time], IncrementalHoareTripleChecker [73 Valid, 11361 Invalid, 0 Unknown, 0 Unchecked, 5239.11ms Time] [2021-11-12 22:22:21,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33034 states. [2021-11-12 22:22:22,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33034 to 17480. [2021-11-12 22:22:22,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17480 states, 17479 states have (on average 4.269294582069913) internal successors, (74623), 17479 states have internal predecessors, (74623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:22:22,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17480 states to 17480 states and 74623 transitions. [2021-11-12 22:22:22,201 INFO L78 Accepts]: Start accepts. Automaton has 17480 states and 74623 transitions. Word has length 63 [2021-11-12 22:22:22,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:22:22,201 INFO L470 AbstractCegarLoop]: Abstraction has 17480 states and 74623 transitions. [2021-11-12 22:22:22,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:22:22,202 INFO L276 IsEmpty]: Start isEmpty. Operand 17480 states and 74623 transitions. [2021-11-12 22:22:22,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:22:22,242 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:22:22,242 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:22:22,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-12 22:22:22,243 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:22:22,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:22:22,243 INFO L85 PathProgramCache]: Analyzing trace with hash 904545985, now seen corresponding path program 6 times [2021-11-12 22:22:22,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:22:22,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713754570] [2021-11-12 22:22:22,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:22:22,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:22:22,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:22:22,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:22:22,881 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:22:22,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713754570] [2021-11-12 22:22:22,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713754570] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:22:22,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:22:22,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-11-12 22:22:22,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843109623] [2021-11-12 22:22:22,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:22:22,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-12 22:22:22,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:22:22,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-12 22:22:22,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=379, Unknown=0, NotChecked=0, Total=420 [2021-11-12 22:22:22,883 INFO L87 Difference]: Start difference. First operand 17480 states and 74623 transitions. Second operand has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:22:26,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:22:26,774 INFO L93 Difference]: Finished difference Result 22281 states and 95645 transitions. [2021-11-12 22:22:26,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-11-12 22:22:26,774 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:22:26,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:22:27,006 INFO L225 Difference]: With dead ends: 22281 [2021-11-12 22:22:27,006 INFO L226 Difference]: Without dead ends: 22010 [2021-11-12 22:22:27,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=221, Invalid=2329, Unknown=0, NotChecked=0, Total=2550 [2021-11-12 22:22:27,008 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 713 mSDsluCounter, 5263 mSDsCounter, 0 mSdLazyCounter, 6049 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2478.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 713 SdHoareTripleChecker+Valid, 1710 SdHoareTripleChecker+Invalid, 6088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.99ms SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 6049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2885.94ms IncrementalHoareTripleChecker+Time [2021-11-12 22:22:27,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [713 Valid, 1710 Invalid, 6088 Unknown, 0 Unchecked, 17.99ms Time], IncrementalHoareTripleChecker [39 Valid, 6049 Invalid, 0 Unknown, 0 Unchecked, 2885.94ms Time] [2021-11-12 22:22:27,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22010 states. [2021-11-12 22:22:27,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22010 to 17752. [2021-11-12 22:22:27,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17752 states, 17751 states have (on average 4.257957298180385) internal successors, (75583), 17751 states have internal predecessors, (75583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:22:27,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17752 states to 17752 states and 75583 transitions. [2021-11-12 22:22:27,465 INFO L78 Accepts]: Start accepts. Automaton has 17752 states and 75583 transitions. Word has length 63 [2021-11-12 22:22:27,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:22:27,465 INFO L470 AbstractCegarLoop]: Abstraction has 17752 states and 75583 transitions. [2021-11-12 22:22:27,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:22:27,465 INFO L276 IsEmpty]: Start isEmpty. Operand 17752 states and 75583 transitions. [2021-11-12 22:22:27,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:22:27,758 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:22:27,758 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:22:27,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-12 22:22:27,758 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:22:27,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:22:27,759 INFO L85 PathProgramCache]: Analyzing trace with hash 852600221, now seen corresponding path program 7 times [2021-11-12 22:22:27,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:22:27,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303600267] [2021-11-12 22:22:27,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:22:27,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:22:27,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:22:28,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:22:28,488 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:22:28,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303600267] [2021-11-12 22:22:28,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303600267] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:22:28,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:22:28,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-11-12 22:22:28,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636848823] [2021-11-12 22:22:28,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:22:28,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-12 22:22:28,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:22:28,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-12 22:22:28,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=379, Unknown=0, NotChecked=0, Total=420 [2021-11-12 22:22:28,490 INFO L87 Difference]: Start difference. First operand 17752 states and 75583 transitions. Second operand has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:22:33,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:22:33,674 INFO L93 Difference]: Finished difference Result 23355 states and 100138 transitions. [2021-11-12 22:22:33,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-11-12 22:22:33,675 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:22:33,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:22:33,740 INFO L225 Difference]: With dead ends: 23355 [2021-11-12 22:22:33,740 INFO L226 Difference]: Without dead ends: 22994 [2021-11-12 22:22:33,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 740 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=306, Invalid=3234, Unknown=0, NotChecked=0, Total=3540 [2021-11-12 22:22:33,742 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 780 mSDsluCounter, 6165 mSDsCounter, 0 mSdLazyCounter, 7528 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3213.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 1911 SdHoareTripleChecker+Invalid, 7578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.42ms SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 7528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3754.75ms IncrementalHoareTripleChecker+Time [2021-11-12 22:22:33,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [780 Valid, 1911 Invalid, 7578 Unknown, 0 Unchecked, 26.42ms Time], IncrementalHoareTripleChecker [50 Valid, 7528 Invalid, 0 Unknown, 0 Unchecked, 3754.75ms Time] [2021-11-12 22:22:33,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22994 states. [2021-11-12 22:22:34,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22994 to 17780. [2021-11-12 22:22:34,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17780 states, 17779 states have (on average 4.264975532932111) internal successors, (75827), 17779 states have internal predecessors, (75827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:22:34,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17780 states to 17780 states and 75827 transitions. [2021-11-12 22:22:34,332 INFO L78 Accepts]: Start accepts. Automaton has 17780 states and 75827 transitions. Word has length 63 [2021-11-12 22:22:34,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:22:34,332 INFO L470 AbstractCegarLoop]: Abstraction has 17780 states and 75827 transitions. [2021-11-12 22:22:34,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:22:34,332 INFO L276 IsEmpty]: Start isEmpty. Operand 17780 states and 75827 transitions. [2021-11-12 22:22:34,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:22:34,365 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:22:34,366 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:22:34,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-12 22:22:34,366 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:22:34,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:22:34,366 INFO L85 PathProgramCache]: Analyzing trace with hash 761506081, now seen corresponding path program 8 times [2021-11-12 22:22:34,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:22:34,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511650520] [2021-11-12 22:22:34,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:22:34,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:22:34,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:22:35,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:22:35,032 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:22:35,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511650520] [2021-11-12 22:22:35,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511650520] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:22:35,033 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:22:35,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-11-12 22:22:35,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315460174] [2021-11-12 22:22:35,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:22:35,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-12 22:22:35,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:22:35,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-12 22:22:35,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=379, Unknown=0, NotChecked=0, Total=420 [2021-11-12 22:22:35,034 INFO L87 Difference]: Start difference. First operand 17780 states and 75827 transitions. Second operand has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:22:40,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:22:40,634 INFO L93 Difference]: Finished difference Result 24531 states and 105688 transitions. [2021-11-12 22:22:40,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-11-12 22:22:40,634 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:22:40,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:22:40,715 INFO L225 Difference]: With dead ends: 24531 [2021-11-12 22:22:40,715 INFO L226 Difference]: Without dead ends: 24310 [2021-11-12 22:22:40,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1800 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=526, Invalid=5954, Unknown=0, NotChecked=0, Total=6480 [2021-11-12 22:22:40,719 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 1151 mSDsluCounter, 5172 mSDsCounter, 0 mSdLazyCounter, 6335 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2807.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 1639 SdHoareTripleChecker+Invalid, 6561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.36ms SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 6335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3460.78ms IncrementalHoareTripleChecker+Time [2021-11-12 22:22:40,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1151 Valid, 1639 Invalid, 6561 Unknown, 0 Unchecked, 23.36ms Time], IncrementalHoareTripleChecker [226 Valid, 6335 Invalid, 0 Unknown, 0 Unchecked, 3460.78ms Time] [2021-11-12 22:22:40,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24310 states. [2021-11-12 22:22:41,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24310 to 17904. [2021-11-12 22:22:41,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17904 states, 17903 states have (on average 4.2649276657543425) internal successors, (76355), 17903 states have internal predecessors, (76355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:22:41,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17904 states to 17904 states and 76355 transitions. [2021-11-12 22:22:41,354 INFO L78 Accepts]: Start accepts. Automaton has 17904 states and 76355 transitions. Word has length 63 [2021-11-12 22:22:41,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:22:41,355 INFO L470 AbstractCegarLoop]: Abstraction has 17904 states and 76355 transitions. [2021-11-12 22:22:41,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:22:41,355 INFO L276 IsEmpty]: Start isEmpty. Operand 17904 states and 76355 transitions. [2021-11-12 22:22:41,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:22:41,392 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:22:41,392 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:22:41,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-12 22:22:41,392 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:22:41,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:22:41,393 INFO L85 PathProgramCache]: Analyzing trace with hash -65341963, now seen corresponding path program 9 times [2021-11-12 22:22:41,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:22:41,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936873032] [2021-11-12 22:22:41,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:22:41,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:22:41,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:22:42,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:22:42,066 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:22:42,066 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936873032] [2021-11-12 22:22:42,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936873032] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:22:42,066 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:22:42,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-11-12 22:22:42,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748625600] [2021-11-12 22:22:42,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:22:42,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-12 22:22:42,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:22:42,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-12 22:22:42,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2021-11-12 22:22:42,068 INFO L87 Difference]: Start difference. First operand 17904 states and 76355 transitions. Second operand has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:22:50,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:22:50,084 INFO L93 Difference]: Finished difference Result 36943 states and 156867 transitions. [2021-11-12 22:22:50,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-11-12 22:22:50,085 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:22:50,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:22:50,217 INFO L225 Difference]: With dead ends: 36943 [2021-11-12 22:22:50,218 INFO L226 Difference]: Without dead ends: 36652 [2021-11-12 22:22:50,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2230 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=585, Invalid=6897, Unknown=0, NotChecked=0, Total=7482 [2021-11-12 22:22:50,221 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 1307 mSDsluCounter, 10979 mSDsCounter, 0 mSdLazyCounter, 12025 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4755.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 3912 SdHoareTripleChecker+Invalid, 12240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 41.48ms SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 12025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5606.26ms IncrementalHoareTripleChecker+Time [2021-11-12 22:22:50,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1307 Valid, 3912 Invalid, 12240 Unknown, 0 Unchecked, 41.48ms Time], IncrementalHoareTripleChecker [215 Valid, 12025 Invalid, 0 Unknown, 0 Unchecked, 5606.26ms Time] [2021-11-12 22:22:50,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36652 states. [2021-11-12 22:22:51,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36652 to 17976. [2021-11-12 22:22:51,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17976 states, 17975 states have (on average 4.26586926286509) internal successors, (76679), 17975 states have internal predecessors, (76679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:22:51,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17976 states to 17976 states and 76679 transitions. [2021-11-12 22:22:51,376 INFO L78 Accepts]: Start accepts. Automaton has 17976 states and 76679 transitions. Word has length 63 [2021-11-12 22:22:51,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:22:51,377 INFO L470 AbstractCegarLoop]: Abstraction has 17976 states and 76679 transitions. [2021-11-12 22:22:51,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:22:51,377 INFO L276 IsEmpty]: Start isEmpty. Operand 17976 states and 76679 transitions. [2021-11-12 22:22:51,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:22:51,429 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:22:51,429 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:22:51,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-12 22:22:51,430 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:22:51,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:22:51,450 INFO L85 PathProgramCache]: Analyzing trace with hash -555979779, now seen corresponding path program 10 times [2021-11-12 22:22:51,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:22:51,451 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591544417] [2021-11-12 22:22:51,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:22:51,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:22:51,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:22:52,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:22:52,043 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:22:52,043 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591544417] [2021-11-12 22:22:52,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591544417] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:22:52,043 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:22:52,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-11-12 22:22:52,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014014717] [2021-11-12 22:22:52,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:22:52,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-12 22:22:52,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:22:52,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-12 22:22:52,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=306, Unknown=0, NotChecked=0, Total=342 [2021-11-12 22:22:52,046 INFO L87 Difference]: Start difference. First operand 17976 states and 76679 transitions. Second operand has 19 states, 18 states have (on average 3.5) internal successors, (63), 18 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:22:56,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:22:56,412 INFO L93 Difference]: Finished difference Result 23681 states and 101615 transitions. [2021-11-12 22:22:56,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-11-12 22:22:56,415 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.5) internal successors, (63), 18 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:22:56,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:22:56,484 INFO L225 Difference]: With dead ends: 23681 [2021-11-12 22:22:56,484 INFO L226 Difference]: Without dead ends: 23460 [2021-11-12 22:22:56,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 861 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=323, Invalid=3459, Unknown=0, NotChecked=0, Total=3782 [2021-11-12 22:22:56,486 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 766 mSDsluCounter, 5365 mSDsCounter, 0 mSdLazyCounter, 6635 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2665.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 1706 SdHoareTripleChecker+Invalid, 6693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.17ms SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 6635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3130.55ms IncrementalHoareTripleChecker+Time [2021-11-12 22:22:56,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [766 Valid, 1706 Invalid, 6693 Unknown, 0 Unchecked, 22.17ms Time], IncrementalHoareTripleChecker [58 Valid, 6635 Invalid, 0 Unknown, 0 Unchecked, 3130.55ms Time] [2021-11-12 22:22:56,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23460 states. [2021-11-12 22:22:57,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23460 to 18216. [2021-11-12 22:22:57,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18216 states, 18215 states have (on average 4.268954158660445) internal successors, (77759), 18215 states have internal predecessors, (77759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:22:57,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18216 states to 18216 states and 77759 transitions. [2021-11-12 22:22:57,096 INFO L78 Accepts]: Start accepts. Automaton has 18216 states and 77759 transitions. Word has length 63 [2021-11-12 22:22:57,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:22:57,097 INFO L470 AbstractCegarLoop]: Abstraction has 18216 states and 77759 transitions. [2021-11-12 22:22:57,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.5) internal successors, (63), 18 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:22:57,097 INFO L276 IsEmpty]: Start isEmpty. Operand 18216 states and 77759 transitions. [2021-11-12 22:22:57,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:22:57,132 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:22:57,132 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:22:57,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-12 22:22:57,133 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:22:57,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:22:57,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1024167449, now seen corresponding path program 11 times [2021-11-12 22:22:57,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:22:57,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468397455] [2021-11-12 22:22:57,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:22:57,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:22:57,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:22:57,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:22:57,784 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:22:57,784 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468397455] [2021-11-12 22:22:57,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468397455] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:22:57,785 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:22:57,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-11-12 22:22:57,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760097702] [2021-11-12 22:22:57,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:22:57,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-12 22:22:57,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:22:57,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-12 22:22:57,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2021-11-12 22:22:57,786 INFO L87 Difference]: Start difference. First operand 18216 states and 77759 transitions. Second operand has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:23:06,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:23:06,793 INFO L93 Difference]: Finished difference Result 43559 states and 187905 transitions. [2021-11-12 22:23:06,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-11-12 22:23:06,793 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:23:06,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:23:06,924 INFO L225 Difference]: With dead ends: 43559 [2021-11-12 22:23:06,924 INFO L226 Difference]: Without dead ends: 43326 [2021-11-12 22:23:06,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3975 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=875, Invalid=11115, Unknown=0, NotChecked=0, Total=11990 [2021-11-12 22:23:06,927 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 1410 mSDsluCounter, 11293 mSDsCounter, 0 mSdLazyCounter, 12928 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4758.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1410 SdHoareTripleChecker+Valid, 4026 SdHoareTripleChecker+Invalid, 13138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 37.82ms SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 12928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5827.17ms IncrementalHoareTripleChecker+Time [2021-11-12 22:23:06,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1410 Valid, 4026 Invalid, 13138 Unknown, 0 Unchecked, 37.82ms Time], IncrementalHoareTripleChecker [210 Valid, 12928 Invalid, 0 Unknown, 0 Unchecked, 5827.17ms Time] [2021-11-12 22:23:06,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43326 states. [2021-11-12 22:23:07,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43326 to 18336. [2021-11-12 22:23:07,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18336 states, 18335 states have (on average 4.270902645214071) internal successors, (78307), 18335 states have internal predecessors, (78307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:23:07,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18336 states to 18336 states and 78307 transitions. [2021-11-12 22:23:07,718 INFO L78 Accepts]: Start accepts. Automaton has 18336 states and 78307 transitions. Word has length 63 [2021-11-12 22:23:07,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:23:07,718 INFO L470 AbstractCegarLoop]: Abstraction has 18336 states and 78307 transitions. [2021-11-12 22:23:07,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:23:07,719 INFO L276 IsEmpty]: Start isEmpty. Operand 18336 states and 78307 transitions. [2021-11-12 22:23:07,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:23:07,753 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:23:07,753 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:23:07,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-12 22:23:07,753 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:23:07,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:23:07,753 INFO L85 PathProgramCache]: Analyzing trace with hash -431394253, now seen corresponding path program 12 times [2021-11-12 22:23:07,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:23:07,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158934134] [2021-11-12 22:23:07,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:23:07,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:23:07,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:23:08,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:23:08,401 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:23:08,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158934134] [2021-11-12 22:23:08,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158934134] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:23:08,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:23:08,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-11-12 22:23:08,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456515198] [2021-11-12 22:23:08,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:23:08,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-12 22:23:08,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:23:08,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-12 22:23:08,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2021-11-12 22:23:08,403 INFO L87 Difference]: Start difference. First operand 18336 states and 78307 transitions. Second operand has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:23:16,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:23:16,102 INFO L93 Difference]: Finished difference Result 37369 states and 158248 transitions. [2021-11-12 22:23:16,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-11-12 22:23:16,103 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:23:16,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:23:16,314 INFO L225 Difference]: With dead ends: 37369 [2021-11-12 22:23:16,314 INFO L226 Difference]: Without dead ends: 37098 [2021-11-12 22:23:16,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2154 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=577, Invalid=6733, Unknown=0, NotChecked=0, Total=7310 [2021-11-12 22:23:16,317 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 1233 mSDsluCounter, 11088 mSDsCounter, 0 mSdLazyCounter, 12203 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4810.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1233 SdHoareTripleChecker+Valid, 3936 SdHoareTripleChecker+Invalid, 12398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 35.41ms SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 12203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5628.35ms IncrementalHoareTripleChecker+Time [2021-11-12 22:23:16,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1233 Valid, 3936 Invalid, 12398 Unknown, 0 Unchecked, 35.41ms Time], IncrementalHoareTripleChecker [195 Valid, 12203 Invalid, 0 Unknown, 0 Unchecked, 5628.35ms Time] [2021-11-12 22:23:16,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37098 states. [2021-11-12 22:23:16,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37098 to 18372. [2021-11-12 22:23:16,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18372 states, 18371 states have (on average 4.26862990582984) internal successors, (78419), 18371 states have internal predecessors, (78419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:23:17,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18372 states to 18372 states and 78419 transitions. [2021-11-12 22:23:17,044 INFO L78 Accepts]: Start accepts. Automaton has 18372 states and 78419 transitions. Word has length 63 [2021-11-12 22:23:17,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:23:17,044 INFO L470 AbstractCegarLoop]: Abstraction has 18372 states and 78419 transitions. [2021-11-12 22:23:17,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:23:17,045 INFO L276 IsEmpty]: Start isEmpty. Operand 18372 states and 78419 transitions. [2021-11-12 22:23:17,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:23:17,080 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:23:17,080 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:23:17,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-12 22:23:17,080 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:23:17,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:23:17,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1239165741, now seen corresponding path program 13 times [2021-11-12 22:23:17,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:23:17,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466643594] [2021-11-12 22:23:17,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:23:17,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:23:17,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:23:17,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:23:17,696 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:23:17,696 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466643594] [2021-11-12 22:23:17,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466643594] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:23:17,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:23:17,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-11-12 22:23:17,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376908988] [2021-11-12 22:23:17,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:23:17,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-12 22:23:17,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:23:17,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-12 22:23:17,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=378, Unknown=0, NotChecked=0, Total=420 [2021-11-12 22:23:17,698 INFO L87 Difference]: Start difference. First operand 18372 states and 78419 transitions. Second operand has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:23:23,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:23:23,923 INFO L93 Difference]: Finished difference Result 33877 states and 143208 transitions. [2021-11-12 22:23:23,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-11-12 22:23:23,923 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:23:23,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:23:24,014 INFO L225 Difference]: With dead ends: 33877 [2021-11-12 22:23:24,015 INFO L226 Difference]: Without dead ends: 33616 [2021-11-12 22:23:24,015 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1144 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=406, Invalid=4286, Unknown=0, NotChecked=0, Total=4692 [2021-11-12 22:23:24,016 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 1042 mSDsluCounter, 8726 mSDsCounter, 0 mSdLazyCounter, 9614 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3799.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1042 SdHoareTripleChecker+Valid, 3109 SdHoareTripleChecker+Invalid, 9773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.64ms SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 9614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4447.34ms IncrementalHoareTripleChecker+Time [2021-11-12 22:23:24,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1042 Valid, 3109 Invalid, 9773 Unknown, 0 Unchecked, 27.64ms Time], IncrementalHoareTripleChecker [159 Valid, 9614 Invalid, 0 Unknown, 0 Unchecked, 4447.34ms Time] [2021-11-12 22:23:24,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33616 states. [2021-11-12 22:23:24,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33616 to 18460. [2021-11-12 22:23:24,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18460 states, 18459 states have (on average 4.271033100384636) internal successors, (78839), 18459 states have internal predecessors, (78839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:23:24,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18460 states to 18460 states and 78839 transitions. [2021-11-12 22:23:24,658 INFO L78 Accepts]: Start accepts. Automaton has 18460 states and 78839 transitions. Word has length 63 [2021-11-12 22:23:24,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:23:24,658 INFO L470 AbstractCegarLoop]: Abstraction has 18460 states and 78839 transitions. [2021-11-12 22:23:24,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:23:24,658 INFO L276 IsEmpty]: Start isEmpty. Operand 18460 states and 78839 transitions. [2021-11-12 22:23:24,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:23:24,689 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:23:24,689 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:23:24,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-12 22:23:24,689 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:23:24,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:23:24,690 INFO L85 PathProgramCache]: Analyzing trace with hash 175468371, now seen corresponding path program 14 times [2021-11-12 22:23:24,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:23:24,690 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364995149] [2021-11-12 22:23:24,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:23:24,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:23:24,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:23:25,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:23:25,310 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:23:25,310 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364995149] [2021-11-12 22:23:25,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364995149] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:23:25,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:23:25,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-11-12 22:23:25,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763027924] [2021-11-12 22:23:25,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:23:25,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-12 22:23:25,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:23:25,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-12 22:23:25,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=379, Unknown=0, NotChecked=0, Total=420 [2021-11-12 22:23:25,312 INFO L87 Difference]: Start difference. First operand 18460 states and 78839 transitions. Second operand has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:23:30,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:23:30,369 INFO L93 Difference]: Finished difference Result 24245 states and 104847 transitions. [2021-11-12 22:23:30,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-11-12 22:23:30,370 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:23:30,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:23:30,433 INFO L225 Difference]: With dead ends: 24245 [2021-11-12 22:23:30,433 INFO L226 Difference]: Without dead ends: 23984 [2021-11-12 22:23:30,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1075 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=381, Invalid=4175, Unknown=0, NotChecked=0, Total=4556 [2021-11-12 22:23:30,435 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 827 mSDsluCounter, 5362 mSDsCounter, 0 mSdLazyCounter, 6961 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2690.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 1647 SdHoareTripleChecker+Invalid, 7034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.67ms SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 6961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3183.75ms IncrementalHoareTripleChecker+Time [2021-11-12 22:23:30,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [827 Valid, 1647 Invalid, 7034 Unknown, 0 Unchecked, 19.67ms Time], IncrementalHoareTripleChecker [73 Valid, 6961 Invalid, 0 Unknown, 0 Unchecked, 3183.75ms Time] [2021-11-12 22:23:30,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23984 states. [2021-11-12 22:23:30,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23984 to 18492. [2021-11-12 22:23:30,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18492 states, 18491 states have (on average 4.270996701097832) internal successors, (78975), 18491 states have internal predecessors, (78975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:23:31,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18492 states to 18492 states and 78975 transitions. [2021-11-12 22:23:31,050 INFO L78 Accepts]: Start accepts. Automaton has 18492 states and 78975 transitions. Word has length 63 [2021-11-12 22:23:31,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:23:31,051 INFO L470 AbstractCegarLoop]: Abstraction has 18492 states and 78975 transitions. [2021-11-12 22:23:31,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:23:31,051 INFO L276 IsEmpty]: Start isEmpty. Operand 18492 states and 78975 transitions. [2021-11-12 22:23:31,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:23:31,081 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:23:31,081 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:23:31,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-12 22:23:31,082 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:23:31,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:23:31,083 INFO L85 PathProgramCache]: Analyzing trace with hash -831999455, now seen corresponding path program 15 times [2021-11-12 22:23:31,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:23:31,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952743481] [2021-11-12 22:23:31,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:23:31,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:23:31,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:23:31,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:23:31,735 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:23:31,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952743481] [2021-11-12 22:23:31,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952743481] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:23:31,735 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:23:31,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-11-12 22:23:31,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976957217] [2021-11-12 22:23:31,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:23:31,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-12 22:23:31,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:23:31,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-12 22:23:31,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=378, Unknown=0, NotChecked=0, Total=420 [2021-11-12 22:23:31,737 INFO L87 Difference]: Start difference. First operand 18492 states and 78975 transitions. Second operand has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:23:36,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:23:36,723 INFO L93 Difference]: Finished difference Result 31025 states and 130479 transitions. [2021-11-12 22:23:36,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-11-12 22:23:36,724 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:23:36,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:23:36,807 INFO L225 Difference]: With dead ends: 31025 [2021-11-12 22:23:36,807 INFO L226 Difference]: Without dead ends: 30754 [2021-11-12 22:23:36,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 614 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=275, Invalid=2805, Unknown=0, NotChecked=0, Total=3080 [2021-11-12 22:23:36,808 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 965 mSDsluCounter, 7607 mSDsCounter, 0 mSdLazyCounter, 8133 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3309.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 2711 SdHoareTripleChecker+Invalid, 8197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.14ms SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 8133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3858.58ms IncrementalHoareTripleChecker+Time [2021-11-12 22:23:36,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [965 Valid, 2711 Invalid, 8197 Unknown, 0 Unchecked, 23.14ms Time], IncrementalHoareTripleChecker [64 Valid, 8133 Invalid, 0 Unknown, 0 Unchecked, 3858.58ms Time] [2021-11-12 22:23:36,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30754 states. [2021-11-12 22:23:37,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30754 to 18528. [2021-11-12 22:23:37,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18528 states, 18527 states have (on average 4.270686025800184) internal successors, (79123), 18527 states have internal predecessors, (79123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:23:37,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18528 states to 18528 states and 79123 transitions. [2021-11-12 22:23:37,487 INFO L78 Accepts]: Start accepts. Automaton has 18528 states and 79123 transitions. Word has length 63 [2021-11-12 22:23:37,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:23:37,487 INFO L470 AbstractCegarLoop]: Abstraction has 18528 states and 79123 transitions. [2021-11-12 22:23:37,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:23:37,487 INFO L276 IsEmpty]: Start isEmpty. Operand 18528 states and 79123 transitions. [2021-11-12 22:23:37,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:23:37,518 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:23:37,518 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:23:37,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-12 22:23:37,518 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:23:37,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:23:37,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1639770943, now seen corresponding path program 16 times [2021-11-12 22:23:37,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:23:37,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563249236] [2021-11-12 22:23:37,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:23:37,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:23:37,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:23:38,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:23:38,135 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:23:38,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563249236] [2021-11-12 22:23:38,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563249236] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:23:38,136 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:23:38,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-11-12 22:23:38,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894294276] [2021-11-12 22:23:38,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:23:38,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-12 22:23:38,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:23:38,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-12 22:23:38,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2021-11-12 22:23:38,137 INFO L87 Difference]: Start difference. First operand 18528 states and 79123 transitions. Second operand has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:23:44,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:23:44,195 INFO L93 Difference]: Finished difference Result 34707 states and 146746 transitions. [2021-11-12 22:23:44,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-11-12 22:23:44,196 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:23:44,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:23:44,307 INFO L225 Difference]: With dead ends: 34707 [2021-11-12 22:23:44,308 INFO L226 Difference]: Without dead ends: 34454 [2021-11-12 22:23:44,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1199 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=390, Invalid=4302, Unknown=0, NotChecked=0, Total=4692 [2021-11-12 22:23:44,309 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 1182 mSDsluCounter, 9202 mSDsCounter, 0 mSdLazyCounter, 10061 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3970.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1182 SdHoareTripleChecker+Valid, 3267 SdHoareTripleChecker+Invalid, 10150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.60ms SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 10061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4641.14ms IncrementalHoareTripleChecker+Time [2021-11-12 22:23:44,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1182 Valid, 3267 Invalid, 10150 Unknown, 0 Unchecked, 29.60ms Time], IncrementalHoareTripleChecker [89 Valid, 10061 Invalid, 0 Unknown, 0 Unchecked, 4641.14ms Time] [2021-11-12 22:23:44,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34454 states. [2021-11-12 22:23:44,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34454 to 18528. [2021-11-12 22:23:45,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18528 states, 18527 states have (on average 4.268742915744589) internal successors, (79087), 18527 states have internal predecessors, (79087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:23:45,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18528 states to 18528 states and 79087 transitions. [2021-11-12 22:23:45,060 INFO L78 Accepts]: Start accepts. Automaton has 18528 states and 79087 transitions. Word has length 63 [2021-11-12 22:23:45,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:23:45,060 INFO L470 AbstractCegarLoop]: Abstraction has 18528 states and 79087 transitions. [2021-11-12 22:23:45,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:23:45,061 INFO L276 IsEmpty]: Start isEmpty. Operand 18528 states and 79087 transitions. [2021-11-12 22:23:45,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:23:45,091 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:23:45,091 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:23:45,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-12 22:23:45,091 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:23:45,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:23:45,092 INFO L85 PathProgramCache]: Analyzing trace with hash 306666749, now seen corresponding path program 17 times [2021-11-12 22:23:45,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:23:45,092 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976595745] [2021-11-12 22:23:45,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:23:45,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:23:45,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:23:45,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:23:45,748 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:23:45,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976595745] [2021-11-12 22:23:45,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976595745] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:23:45,748 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:23:45,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-11-12 22:23:45,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723767857] [2021-11-12 22:23:45,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:23:45,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-12 22:23:45,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:23:45,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-12 22:23:45,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=378, Unknown=0, NotChecked=0, Total=420 [2021-11-12 22:23:45,750 INFO L87 Difference]: Start difference. First operand 18528 states and 79087 transitions. Second operand has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:23:50,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:23:50,767 INFO L93 Difference]: Finished difference Result 30753 states and 129601 transitions. [2021-11-12 22:23:50,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-12 22:23:50,768 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:23:50,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:23:50,856 INFO L225 Difference]: With dead ends: 30753 [2021-11-12 22:23:50,856 INFO L226 Difference]: Without dead ends: 30448 [2021-11-12 22:23:50,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=259, Invalid=2603, Unknown=0, NotChecked=0, Total=2862 [2021-11-12 22:23:50,857 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 904 mSDsluCounter, 7545 mSDsCounter, 0 mSdLazyCounter, 8059 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3141.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 904 SdHoareTripleChecker+Valid, 2681 SdHoareTripleChecker+Invalid, 8118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.46ms SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 8059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3686.37ms IncrementalHoareTripleChecker+Time [2021-11-12 22:23:50,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [904 Valid, 2681 Invalid, 8118 Unknown, 0 Unchecked, 24.46ms Time], IncrementalHoareTripleChecker [59 Valid, 8059 Invalid, 0 Unknown, 0 Unchecked, 3686.37ms Time] [2021-11-12 22:23:50,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30448 states. [2021-11-12 22:23:51,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30448 to 18484. [2021-11-12 22:23:51,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18484 states, 18483 states have (on average 4.270464751393172) internal successors, (78931), 18483 states have internal predecessors, (78931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:23:51,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18484 states to 18484 states and 78931 transitions. [2021-11-12 22:23:51,554 INFO L78 Accepts]: Start accepts. Automaton has 18484 states and 78931 transitions. Word has length 63 [2021-11-12 22:23:51,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:23:51,554 INFO L470 AbstractCegarLoop]: Abstraction has 18484 states and 78931 transitions. [2021-11-12 22:23:51,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:23:51,554 INFO L276 IsEmpty]: Start isEmpty. Operand 18484 states and 78931 transitions. [2021-11-12 22:23:51,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:23:51,597 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:23:51,597 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:23:51,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-12 22:23:51,598 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:23:51,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:23:51,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1493096317, now seen corresponding path program 18 times [2021-11-12 22:23:51,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:23:51,598 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16704136] [2021-11-12 22:23:51,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:23:51,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:23:51,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:23:52,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:23:52,204 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:23:52,204 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16704136] [2021-11-12 22:23:52,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16704136] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:23:52,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:23:52,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-11-12 22:23:52,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735040304] [2021-11-12 22:23:52,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:23:52,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-12 22:23:52,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:23:52,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-12 22:23:52,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2021-11-12 22:23:52,206 INFO L87 Difference]: Start difference. First operand 18484 states and 78931 transitions. Second operand has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:23:59,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:23:59,519 INFO L93 Difference]: Finished difference Result 36979 states and 157124 transitions. [2021-11-12 22:23:59,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-11-12 22:23:59,520 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:23:59,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:23:59,620 INFO L225 Difference]: With dead ends: 36979 [2021-11-12 22:23:59,620 INFO L226 Difference]: Without dead ends: 36758 [2021-11-12 22:23:59,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2300 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=583, Invalid=7073, Unknown=0, NotChecked=0, Total=7656 [2021-11-12 22:23:59,622 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 1340 mSDsluCounter, 10351 mSDsCounter, 0 mSdLazyCounter, 11221 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4478.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1340 SdHoareTripleChecker+Valid, 3704 SdHoareTripleChecker+Invalid, 11451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 33.78ms SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 11221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5235.51ms IncrementalHoareTripleChecker+Time [2021-11-12 22:23:59,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1340 Valid, 3704 Invalid, 11451 Unknown, 0 Unchecked, 33.78ms Time], IncrementalHoareTripleChecker [230 Valid, 11221 Invalid, 0 Unknown, 0 Unchecked, 5235.51ms Time] [2021-11-12 22:23:59,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36758 states. [2021-11-12 22:24:00,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36758 to 18564. [2021-11-12 22:24:00,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18564 states, 18563 states have (on average 4.269299143457415) internal successors, (79251), 18563 states have internal predecessors, (79251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:24:00,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18564 states to 18564 states and 79251 transitions. [2021-11-12 22:24:00,322 INFO L78 Accepts]: Start accepts. Automaton has 18564 states and 79251 transitions. Word has length 63 [2021-11-12 22:24:00,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:24:00,323 INFO L470 AbstractCegarLoop]: Abstraction has 18564 states and 79251 transitions. [2021-11-12 22:24:00,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:24:00,323 INFO L276 IsEmpty]: Start isEmpty. Operand 18564 states and 79251 transitions. [2021-11-12 22:24:00,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:24:00,359 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:24:00,359 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:24:00,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-12 22:24:00,359 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:24:00,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:24:00,359 INFO L85 PathProgramCache]: Analyzing trace with hash 666248273, now seen corresponding path program 19 times [2021-11-12 22:24:00,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:24:00,360 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592760817] [2021-11-12 22:24:00,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:24:00,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:24:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:24:00,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:24:00,826 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:24:00,826 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592760817] [2021-11-12 22:24:00,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592760817] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:24:00,826 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:24:00,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-11-12 22:24:00,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232165322] [2021-11-12 22:24:00,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:24:00,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-12 22:24:00,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:24:00,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-12 22:24:00,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=306, Unknown=0, NotChecked=0, Total=342 [2021-11-12 22:24:00,827 INFO L87 Difference]: Start difference. First operand 18564 states and 79251 transitions. Second operand has 19 states, 18 states have (on average 3.5) internal successors, (63), 18 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:24:03,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:24:03,583 INFO L93 Difference]: Finished difference Result 21693 states and 91935 transitions. [2021-11-12 22:24:03,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-11-12 22:24:03,583 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.5) internal successors, (63), 18 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:24:03,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:24:03,638 INFO L225 Difference]: With dead ends: 21693 [2021-11-12 22:24:03,638 INFO L226 Difference]: Without dead ends: 21402 [2021-11-12 22:24:03,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=176, Invalid=1716, Unknown=0, NotChecked=0, Total=1892 [2021-11-12 22:24:03,639 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 579 mSDsluCounter, 4089 mSDsCounter, 0 mSdLazyCounter, 4595 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1608.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 1341 SdHoareTripleChecker+Invalid, 4623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.76ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 4595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1909.75ms IncrementalHoareTripleChecker+Time [2021-11-12 22:24:03,639 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [579 Valid, 1341 Invalid, 4623 Unknown, 0 Unchecked, 12.76ms Time], IncrementalHoareTripleChecker [28 Valid, 4595 Invalid, 0 Unknown, 0 Unchecked, 1909.75ms Time] [2021-11-12 22:24:03,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21402 states. [2021-11-12 22:24:04,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21402 to 18592. [2021-11-12 22:24:04,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18592 states, 18591 states have (on average 4.26803291915443) internal successors, (79347), 18591 states have internal predecessors, (79347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:24:04,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18592 states to 18592 states and 79347 transitions. [2021-11-12 22:24:04,328 INFO L78 Accepts]: Start accepts. Automaton has 18592 states and 79347 transitions. Word has length 63 [2021-11-12 22:24:04,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:24:04,328 INFO L470 AbstractCegarLoop]: Abstraction has 18592 states and 79347 transitions. [2021-11-12 22:24:04,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.5) internal successors, (63), 18 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:24:04,328 INFO L276 IsEmpty]: Start isEmpty. Operand 18592 states and 79347 transitions. [2021-11-12 22:24:04,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:24:04,369 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:24:04,369 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:24:04,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-12 22:24:04,369 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:24:04,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:24:04,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1630500289, now seen corresponding path program 20 times [2021-11-12 22:24:04,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:24:04,370 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410648530] [2021-11-12 22:24:04,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:24:04,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:24:04,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:24:05,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:24:05,043 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:24:05,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410648530] [2021-11-12 22:24:05,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410648530] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:24:05,044 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:24:05,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-11-12 22:24:05,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908254470] [2021-11-12 22:24:05,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:24:05,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-12 22:24:05,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:24:05,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-12 22:24:05,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=379, Unknown=0, NotChecked=0, Total=420 [2021-11-12 22:24:05,046 INFO L87 Difference]: Start difference. First operand 18592 states and 79347 transitions. Second operand has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:24:09,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:24:09,602 INFO L93 Difference]: Finished difference Result 24067 states and 103192 transitions. [2021-11-12 22:24:09,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-11-12 22:24:09,602 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:24:09,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:24:09,663 INFO L225 Difference]: With dead ends: 24067 [2021-11-12 22:24:09,663 INFO L226 Difference]: Without dead ends: 23686 [2021-11-12 22:24:09,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 783 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=312, Invalid=3348, Unknown=0, NotChecked=0, Total=3660 [2021-11-12 22:24:09,665 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 768 mSDsluCounter, 5438 mSDsCounter, 0 mSdLazyCounter, 6450 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2626.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 6505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.17ms SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 6450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3069.44ms IncrementalHoareTripleChecker+Time [2021-11-12 22:24:09,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [768 Valid, 1744 Invalid, 6505 Unknown, 0 Unchecked, 18.17ms Time], IncrementalHoareTripleChecker [55 Valid, 6450 Invalid, 0 Unknown, 0 Unchecked, 3069.44ms Time] [2021-11-12 22:24:09,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23686 states. [2021-11-12 22:24:10,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23686 to 18688. [2021-11-12 22:24:10,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18688 states, 18687 states have (on average 4.265585701289667) internal successors, (79711), 18687 states have internal predecessors, (79711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:24:10,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18688 states to 18688 states and 79711 transitions. [2021-11-12 22:24:10,100 INFO L78 Accepts]: Start accepts. Automaton has 18688 states and 79711 transitions. Word has length 63 [2021-11-12 22:24:10,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:24:10,100 INFO L470 AbstractCegarLoop]: Abstraction has 18688 states and 79711 transitions. [2021-11-12 22:24:10,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:24:10,100 INFO L276 IsEmpty]: Start isEmpty. Operand 18688 states and 79711 transitions. [2021-11-12 22:24:10,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:24:10,378 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:24:10,379 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:24:10,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-12 22:24:10,379 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:24:10,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:24:10,380 INFO L85 PathProgramCache]: Analyzing trace with hash -224018687, now seen corresponding path program 21 times [2021-11-12 22:24:10,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:24:10,380 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576173781] [2021-11-12 22:24:10,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:24:10,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:24:10,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:24:11,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:24:11,012 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:24:11,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576173781] [2021-11-12 22:24:11,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576173781] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:24:11,012 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:24:11,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-11-12 22:24:11,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242362693] [2021-11-12 22:24:11,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:24:11,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-12 22:24:11,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:24:11,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-12 22:24:11,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2021-11-12 22:24:11,014 INFO L87 Difference]: Start difference. First operand 18688 states and 79711 transitions. Second operand has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:24:19,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:24:19,575 INFO L93 Difference]: Finished difference Result 38147 states and 161445 transitions. [2021-11-12 22:24:19,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-11-12 22:24:19,580 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:24:19,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:24:19,721 INFO L225 Difference]: With dead ends: 38147 [2021-11-12 22:24:19,722 INFO L226 Difference]: Without dead ends: 37926 [2021-11-12 22:24:19,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2514 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=632, Invalid=7558, Unknown=0, NotChecked=0, Total=8190 [2021-11-12 22:24:19,723 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 1448 mSDsluCounter, 11601 mSDsCounter, 0 mSdLazyCounter, 12485 mSolverCounterSat, 253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4919.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1448 SdHoareTripleChecker+Valid, 4106 SdHoareTripleChecker+Invalid, 12738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 44.21ms SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 12485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5825.29ms IncrementalHoareTripleChecker+Time [2021-11-12 22:24:19,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1448 Valid, 4106 Invalid, 12738 Unknown, 0 Unchecked, 44.21ms Time], IncrementalHoareTripleChecker [253 Valid, 12485 Invalid, 0 Unknown, 0 Unchecked, 5825.29ms Time] [2021-11-12 22:24:19,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37926 states. [2021-11-12 22:24:20,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37926 to 18696. [2021-11-12 22:24:20,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18696 states, 18695 states have (on average 4.265686012302755) internal successors, (79747), 18695 states have internal predecessors, (79747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:24:20,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18696 states to 18696 states and 79747 transitions. [2021-11-12 22:24:20,620 INFO L78 Accepts]: Start accepts. Automaton has 18696 states and 79747 transitions. Word has length 63 [2021-11-12 22:24:20,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:24:20,621 INFO L470 AbstractCegarLoop]: Abstraction has 18696 states and 79747 transitions. [2021-11-12 22:24:20,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:24:20,621 INFO L276 IsEmpty]: Start isEmpty. Operand 18696 states and 79747 transitions. [2021-11-12 22:24:20,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:24:20,657 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:24:20,657 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:24:20,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-12 22:24:20,657 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:24:20,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:24:20,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1050866731, now seen corresponding path program 22 times [2021-11-12 22:24:20,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:24:20,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902593975] [2021-11-12 22:24:20,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:24:20,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:24:20,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:24:21,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:24:21,180 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:24:21,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902593975] [2021-11-12 22:24:21,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902593975] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:24:21,180 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:24:21,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-11-12 22:24:21,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508159759] [2021-11-12 22:24:21,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:24:21,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-12 22:24:21,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:24:21,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-12 22:24:21,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2021-11-12 22:24:21,181 INFO L87 Difference]: Start difference. First operand 18696 states and 79747 transitions. Second operand has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:24:30,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:24:30,374 INFO L93 Difference]: Finished difference Result 38233 states and 161532 transitions. [2021-11-12 22:24:30,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-11-12 22:24:30,375 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:24:30,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:24:30,506 INFO L225 Difference]: With dead ends: 38233 [2021-11-12 22:24:30,506 INFO L226 Difference]: Without dead ends: 37942 [2021-11-12 22:24:30,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2808 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=692, Invalid=8238, Unknown=0, NotChecked=0, Total=8930 [2021-11-12 22:24:30,508 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 1440 mSDsluCounter, 11570 mSDsCounter, 0 mSdLazyCounter, 12544 mSolverCounterSat, 266 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5268.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1440 SdHoareTripleChecker+Valid, 4079 SdHoareTripleChecker+Invalid, 12810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 48.63ms SdHoareTripleChecker+Time, 266 IncrementalHoareTripleChecker+Valid, 12544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6209.77ms IncrementalHoareTripleChecker+Time [2021-11-12 22:24:30,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1440 Valid, 4079 Invalid, 12810 Unknown, 0 Unchecked, 48.63ms Time], IncrementalHoareTripleChecker [266 Valid, 12544 Invalid, 0 Unknown, 0 Unchecked, 6209.77ms Time] [2021-11-12 22:24:30,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37942 states. [2021-11-12 22:24:31,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37942 to 18720. [2021-11-12 22:24:31,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18720 states, 18719 states have (on average 4.265559057641968) internal successors, (79847), 18719 states have internal predecessors, (79847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:24:31,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18720 states to 18720 states and 79847 transitions. [2021-11-12 22:24:31,318 INFO L78 Accepts]: Start accepts. Automaton has 18720 states and 79847 transitions. Word has length 63 [2021-11-12 22:24:31,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:24:31,319 INFO L470 AbstractCegarLoop]: Abstraction has 18720 states and 79847 transitions. [2021-11-12 22:24:31,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:24:31,319 INFO L276 IsEmpty]: Start isEmpty. Operand 18720 states and 79847 transitions. [2021-11-12 22:24:31,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:24:31,359 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:24:31,359 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:24:31,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-12 22:24:31,359 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:24:31,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:24:31,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1541504547, now seen corresponding path program 23 times [2021-11-12 22:24:31,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:24:31,360 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561287466] [2021-11-12 22:24:31,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:24:31,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:24:31,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:24:31,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:24:31,988 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:24:31,988 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561287466] [2021-11-12 22:24:31,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561287466] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:24:31,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:24:31,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-11-12 22:24:31,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593207736] [2021-11-12 22:24:31,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:24:31,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-12 22:24:31,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:24:31,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-12 22:24:31,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2021-11-12 22:24:31,990 INFO L87 Difference]: Start difference. First operand 18720 states and 79847 transitions. Second operand has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:24:41,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:24:41,200 INFO L93 Difference]: Finished difference Result 42624 states and 182894 transitions. [2021-11-12 22:24:41,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-11-12 22:24:41,200 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:24:41,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:24:41,352 INFO L225 Difference]: With dead ends: 42624 [2021-11-12 22:24:41,352 INFO L226 Difference]: Without dead ends: 42182 [2021-11-12 22:24:41,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3733 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=846, Invalid=10496, Unknown=0, NotChecked=0, Total=11342 [2021-11-12 22:24:41,353 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 1491 mSDsluCounter, 11567 mSDsCounter, 0 mSdLazyCounter, 12903 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5382.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 4112 SdHoareTripleChecker+Invalid, 13121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 42.20ms SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 12903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6276.78ms IncrementalHoareTripleChecker+Time [2021-11-12 22:24:41,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1491 Valid, 4112 Invalid, 13121 Unknown, 0 Unchecked, 42.20ms Time], IncrementalHoareTripleChecker [218 Valid, 12903 Invalid, 0 Unknown, 0 Unchecked, 6276.78ms Time] [2021-11-12 22:24:41,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42182 states. [2021-11-12 22:24:42,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42182 to 18792. [2021-11-12 22:24:42,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18792 states, 18791 states have (on average 4.2647544037039005) internal successors, (80139), 18791 states have internal predecessors, (80139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:24:42,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18792 states to 18792 states and 80139 transitions. [2021-11-12 22:24:42,186 INFO L78 Accepts]: Start accepts. Automaton has 18792 states and 80139 transitions. Word has length 63 [2021-11-12 22:24:42,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:24:42,187 INFO L470 AbstractCegarLoop]: Abstraction has 18792 states and 80139 transitions. [2021-11-12 22:24:42,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:24:42,187 INFO L276 IsEmpty]: Start isEmpty. Operand 18792 states and 80139 transitions. [2021-11-12 22:24:42,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:24:42,221 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:24:42,221 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:24:42,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-12 22:24:42,222 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:24:42,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:24:42,222 INFO L85 PathProgramCache]: Analyzing trace with hash -2009692217, now seen corresponding path program 24 times [2021-11-12 22:24:42,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:24:42,222 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812689677] [2021-11-12 22:24:42,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:24:42,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:24:42,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:24:42,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:24:42,845 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:24:42,845 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812689677] [2021-11-12 22:24:42,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812689677] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:24:42,845 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:24:42,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-11-12 22:24:42,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948890625] [2021-11-12 22:24:42,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:24:42,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-12 22:24:42,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:24:42,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-12 22:24:42,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2021-11-12 22:24:42,847 INFO L87 Difference]: Start difference. First operand 18792 states and 80139 transitions. Second operand has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:24:51,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:24:51,752 INFO L93 Difference]: Finished difference Result 41726 states and 178737 transitions. [2021-11-12 22:24:51,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2021-11-12 22:24:51,753 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:24:51,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:24:51,881 INFO L225 Difference]: With dead ends: 41726 [2021-11-12 22:24:51,881 INFO L226 Difference]: Without dead ends: 41276 [2021-11-12 22:24:51,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3642 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=819, Invalid=10311, Unknown=0, NotChecked=0, Total=11130 [2021-11-12 22:24:51,882 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 1427 mSDsluCounter, 11594 mSDsCounter, 0 mSdLazyCounter, 12946 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4998.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1427 SdHoareTripleChecker+Valid, 4134 SdHoareTripleChecker+Invalid, 13155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 42.11ms SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 12946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5890.43ms IncrementalHoareTripleChecker+Time [2021-11-12 22:24:51,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1427 Valid, 4134 Invalid, 13155 Unknown, 0 Unchecked, 42.11ms Time], IncrementalHoareTripleChecker [209 Valid, 12946 Invalid, 0 Unknown, 0 Unchecked, 5890.43ms Time] [2021-11-12 22:24:51,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41276 states. [2021-11-12 22:24:52,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41276 to 18768. [2021-11-12 22:24:52,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18768 states, 18767 states have (on average 4.26530612244898) internal successors, (80047), 18767 states have internal predecessors, (80047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:24:52,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18768 states to 18768 states and 80047 transitions. [2021-11-12 22:24:52,655 INFO L78 Accepts]: Start accepts. Automaton has 18768 states and 80047 transitions. Word has length 63 [2021-11-12 22:24:52,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:24:52,655 INFO L470 AbstractCegarLoop]: Abstraction has 18768 states and 80047 transitions. [2021-11-12 22:24:52,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:24:52,655 INFO L276 IsEmpty]: Start isEmpty. Operand 18768 states and 80047 transitions. [2021-11-12 22:24:52,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:24:52,972 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:24:52,972 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:24:52,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-12 22:24:52,972 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:24:52,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:24:52,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1416919021, now seen corresponding path program 25 times [2021-11-12 22:24:52,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:24:52,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890433911] [2021-11-12 22:24:52,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:24:52,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:24:53,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:24:53,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:24:53,606 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:24:53,606 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890433911] [2021-11-12 22:24:53,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890433911] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:24:53,606 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:24:53,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-11-12 22:24:53,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195642826] [2021-11-12 22:24:53,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:24:53,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-12 22:24:53,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:24:53,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-12 22:24:53,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=379, Unknown=0, NotChecked=0, Total=420 [2021-11-12 22:24:53,607 INFO L87 Difference]: Start difference. First operand 18768 states and 80047 transitions. Second operand has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:24:59,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:24:59,155 INFO L93 Difference]: Finished difference Result 25301 states and 107505 transitions. [2021-11-12 22:24:59,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-11-12 22:24:59,155 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:24:59,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:24:59,227 INFO L225 Difference]: With dead ends: 25301 [2021-11-12 22:24:59,227 INFO L226 Difference]: Without dead ends: 25030 [2021-11-12 22:24:59,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1558 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=491, Invalid=5361, Unknown=0, NotChecked=0, Total=5852 [2021-11-12 22:24:59,228 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 992 mSDsluCounter, 5785 mSDsCounter, 0 mSdLazyCounter, 6891 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2819.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 1818 SdHoareTripleChecker+Invalid, 7043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.02ms SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 6891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3318.99ms IncrementalHoareTripleChecker+Time [2021-11-12 22:24:59,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [992 Valid, 1818 Invalid, 7043 Unknown, 0 Unchecked, 23.02ms Time], IncrementalHoareTripleChecker [152 Valid, 6891 Invalid, 0 Unknown, 0 Unchecked, 3318.99ms Time] [2021-11-12 22:24:59,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25030 states. [2021-11-12 22:24:59,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25030 to 18800. [2021-11-12 22:24:59,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18800 states, 18799 states have (on average 4.264854513537954) internal successors, (80175), 18799 states have internal predecessors, (80175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:24:59,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18800 states to 18800 states and 80175 transitions. [2021-11-12 22:24:59,788 INFO L78 Accepts]: Start accepts. Automaton has 18800 states and 80175 transitions. Word has length 63 [2021-11-12 22:24:59,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:24:59,788 INFO L470 AbstractCegarLoop]: Abstraction has 18800 states and 80175 transitions. [2021-11-12 22:24:59,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:24:59,788 INFO L276 IsEmpty]: Start isEmpty. Operand 18800 states and 80175 transitions. [2021-11-12 22:24:59,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:24:59,821 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:24:59,821 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:24:59,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-12 22:24:59,822 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:24:59,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:24:59,822 INFO L85 PathProgramCache]: Analyzing trace with hash 2070276787, now seen corresponding path program 26 times [2021-11-12 22:24:59,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:24:59,822 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024277474] [2021-11-12 22:24:59,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:24:59,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:24:59,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:25:00,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:25:00,397 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:25:00,397 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024277474] [2021-11-12 22:25:00,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024277474] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:25:00,398 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:25:00,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-11-12 22:25:00,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196077055] [2021-11-12 22:25:00,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:25:00,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-12 22:25:00,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:25:00,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-12 22:25:00,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=379, Unknown=0, NotChecked=0, Total=420 [2021-11-12 22:25:00,399 INFO L87 Difference]: Start difference. First operand 18800 states and 80175 transitions. Second operand has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:25:05,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:25:05,632 INFO L93 Difference]: Finished difference Result 24829 states and 105737 transitions. [2021-11-12 22:25:05,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-11-12 22:25:05,632 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:25:05,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:25:05,708 INFO L225 Difference]: With dead ends: 24829 [2021-11-12 22:25:05,708 INFO L226 Difference]: Without dead ends: 24568 [2021-11-12 22:25:05,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1295 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=430, Invalid=4682, Unknown=0, NotChecked=0, Total=5112 [2021-11-12 22:25:05,709 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 929 mSDsluCounter, 5837 mSDsCounter, 0 mSdLazyCounter, 6902 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2689.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 929 SdHoareTripleChecker+Valid, 1865 SdHoareTripleChecker+Invalid, 7045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.28ms SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 6902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3174.16ms IncrementalHoareTripleChecker+Time [2021-11-12 22:25:05,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [929 Valid, 1865 Invalid, 7045 Unknown, 0 Unchecked, 21.28ms Time], IncrementalHoareTripleChecker [143 Valid, 6902 Invalid, 0 Unknown, 0 Unchecked, 3174.16ms Time] [2021-11-12 22:25:05,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24568 states. [2021-11-12 22:25:06,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24568 to 18792. [2021-11-12 22:25:06,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18792 states, 18791 states have (on average 4.2647544037039005) internal successors, (80139), 18791 states have internal predecessors, (80139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:25:06,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18792 states to 18792 states and 80139 transitions. [2021-11-12 22:25:06,202 INFO L78 Accepts]: Start accepts. Automaton has 18792 states and 80139 transitions. Word has length 63 [2021-11-12 22:25:06,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:25:06,203 INFO L470 AbstractCegarLoop]: Abstraction has 18792 states and 80139 transitions. [2021-11-12 22:25:06,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:25:06,203 INFO L276 IsEmpty]: Start isEmpty. Operand 18792 states and 80139 transitions. [2021-11-12 22:25:06,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:25:06,445 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:25:06,445 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:25:06,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-12 22:25:06,445 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:25:06,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:25:06,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1392664101, now seen corresponding path program 27 times [2021-11-12 22:25:06,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:25:06,446 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208208595] [2021-11-12 22:25:06,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:25:06,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:25:06,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:25:06,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:25:06,997 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:25:06,997 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208208595] [2021-11-12 22:25:06,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208208595] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:25:06,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:25:06,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-11-12 22:25:06,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006491488] [2021-11-12 22:25:06,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:25:06,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-12 22:25:06,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:25:06,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-12 22:25:06,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=306, Unknown=0, NotChecked=0, Total=342 [2021-11-12 22:25:06,999 INFO L87 Difference]: Start difference. First operand 18792 states and 80139 transitions. Second operand has 19 states, 18 states have (on average 3.5) internal successors, (63), 18 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:25:10,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:25:10,356 INFO L93 Difference]: Finished difference Result 22497 states and 95521 transitions. [2021-11-12 22:25:10,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-12 22:25:10,357 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.5) internal successors, (63), 18 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:25:10,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:25:10,417 INFO L225 Difference]: With dead ends: 22497 [2021-11-12 22:25:10,417 INFO L226 Difference]: Without dead ends: 22136 [2021-11-12 22:25:10,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=247, Invalid=2405, Unknown=0, NotChecked=0, Total=2652 [2021-11-12 22:25:10,417 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 626 mSDsluCounter, 4543 mSDsCounter, 0 mSdLazyCounter, 5255 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2107.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 1491 SdHoareTripleChecker+Invalid, 5297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.60ms SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 5255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2465.19ms IncrementalHoareTripleChecker+Time [2021-11-12 22:25:10,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [626 Valid, 1491 Invalid, 5297 Unknown, 0 Unchecked, 16.60ms Time], IncrementalHoareTripleChecker [42 Valid, 5255 Invalid, 0 Unknown, 0 Unchecked, 2465.19ms Time] [2021-11-12 22:25:10,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22136 states. [2021-11-12 22:25:10,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22136 to 18832. [2021-11-12 22:25:10,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18832 states, 18831 states have (on average 4.264829270883118) internal successors, (80311), 18831 states have internal predecessors, (80311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:25:10,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18832 states to 18832 states and 80311 transitions. [2021-11-12 22:25:10,872 INFO L78 Accepts]: Start accepts. Automaton has 18832 states and 80311 transitions. Word has length 63 [2021-11-12 22:25:10,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:25:10,873 INFO L470 AbstractCegarLoop]: Abstraction has 18832 states and 80311 transitions. [2021-11-12 22:25:10,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.5) internal successors, (63), 18 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:25:10,873 INFO L276 IsEmpty]: Start isEmpty. Operand 18832 states and 80311 transitions. [2021-11-12 22:25:11,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:25:11,054 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:25:11,054 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:25:11,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-12 22:25:11,054 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:25:11,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:25:11,083 INFO L85 PathProgramCache]: Analyzing trace with hash -186747359, now seen corresponding path program 28 times [2021-11-12 22:25:11,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:25:11,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030201172] [2021-11-12 22:25:11,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:25:11,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:25:11,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:25:11,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:25:11,548 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:25:11,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030201172] [2021-11-12 22:25:11,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030201172] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:25:11,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:25:11,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-11-12 22:25:11,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476637721] [2021-11-12 22:25:11,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:25:11,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-12 22:25:11,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:25:11,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-12 22:25:11,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=306, Unknown=0, NotChecked=0, Total=342 [2021-11-12 22:25:11,550 INFO L87 Difference]: Start difference. First operand 18832 states and 80311 transitions. Second operand has 19 states, 18 states have (on average 3.5) internal successors, (63), 18 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:25:14,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:25:14,213 INFO L93 Difference]: Finished difference Result 22067 states and 93346 transitions. [2021-11-12 22:25:14,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-11-12 22:25:14,213 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.5) internal successors, (63), 18 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:25:14,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:25:14,438 INFO L225 Difference]: With dead ends: 22067 [2021-11-12 22:25:14,438 INFO L226 Difference]: Without dead ends: 21796 [2021-11-12 22:25:14,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=193, Invalid=1877, Unknown=0, NotChecked=0, Total=2070 [2021-11-12 22:25:14,439 INFO L933 BasicCegarLoop]: 85 mSDtfsCounter, 615 mSDsluCounter, 4178 mSDsCounter, 0 mSdLazyCounter, 4685 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1670.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 615 SdHoareTripleChecker+Valid, 1396 SdHoareTripleChecker+Invalid, 4717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.24ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 4685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1983.23ms IncrementalHoareTripleChecker+Time [2021-11-12 22:25:14,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [615 Valid, 1396 Invalid, 4717 Unknown, 0 Unchecked, 14.24ms Time], IncrementalHoareTripleChecker [32 Valid, 4685 Invalid, 0 Unknown, 0 Unchecked, 1983.23ms Time] [2021-11-12 22:25:14,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21796 states. [2021-11-12 22:25:14,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21796 to 18868. [2021-11-12 22:25:14,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18868 states, 18867 states have (on average 4.26262786876557) internal successors, (80423), 18867 states have internal predecessors, (80423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:25:14,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18868 states to 18868 states and 80423 transitions. [2021-11-12 22:25:14,878 INFO L78 Accepts]: Start accepts. Automaton has 18868 states and 80423 transitions. Word has length 63 [2021-11-12 22:25:14,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:25:14,879 INFO L470 AbstractCegarLoop]: Abstraction has 18868 states and 80423 transitions. [2021-11-12 22:25:14,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.5) internal successors, (63), 18 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:25:14,879 INFO L276 IsEmpty]: Start isEmpty. Operand 18868 states and 80423 transitions. [2021-11-12 22:25:14,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:25:14,912 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:25:14,912 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:25:14,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-12 22:25:14,912 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:25:14,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:25:14,913 INFO L85 PathProgramCache]: Analyzing trace with hash -994518847, now seen corresponding path program 29 times [2021-11-12 22:25:14,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:25:14,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627673691] [2021-11-12 22:25:14,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:25:14,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:25:14,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:25:15,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:25:15,733 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:25:15,733 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627673691] [2021-11-12 22:25:15,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627673691] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:25:15,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:25:15,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-11-12 22:25:15,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189851300] [2021-11-12 22:25:15,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:25:15,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-12 22:25:15,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:25:15,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-12 22:25:15,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=378, Unknown=0, NotChecked=0, Total=420 [2021-11-12 22:25:15,735 INFO L87 Difference]: Start difference. First operand 18868 states and 80423 transitions. Second operand has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:25:21,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:25:21,647 INFO L93 Difference]: Finished difference Result 32661 states and 136707 transitions. [2021-11-12 22:25:21,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-11-12 22:25:21,647 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:25:21,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:25:21,740 INFO L225 Difference]: With dead ends: 32661 [2021-11-12 22:25:21,740 INFO L226 Difference]: Without dead ends: 32364 [2021-11-12 22:25:21,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 957 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=348, Invalid=3812, Unknown=0, NotChecked=0, Total=4160 [2021-11-12 22:25:21,741 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 965 mSDsluCounter, 8856 mSDsCounter, 0 mSdLazyCounter, 9828 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3763.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 3060 SdHoareTripleChecker+Invalid, 9925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.97ms SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 9828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4425.09ms IncrementalHoareTripleChecker+Time [2021-11-12 22:25:21,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [965 Valid, 3060 Invalid, 9925 Unknown, 0 Unchecked, 29.97ms Time], IncrementalHoareTripleChecker [97 Valid, 9828 Invalid, 0 Unknown, 0 Unchecked, 4425.09ms Time] [2021-11-12 22:25:21,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32364 states. [2021-11-12 22:25:22,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32364 to 18868. [2021-11-12 22:25:22,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18868 states, 18867 states have (on average 4.264535962262151) internal successors, (80459), 18867 states have internal predecessors, (80459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:25:22,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18868 states to 18868 states and 80459 transitions. [2021-11-12 22:25:22,414 INFO L78 Accepts]: Start accepts. Automaton has 18868 states and 80459 transitions. Word has length 63 [2021-11-12 22:25:22,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:25:22,414 INFO L470 AbstractCegarLoop]: Abstraction has 18868 states and 80459 transitions. [2021-11-12 22:25:22,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:25:22,414 INFO L276 IsEmpty]: Start isEmpty. Operand 18868 states and 80459 transitions. [2021-11-12 22:25:22,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:25:22,448 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:25:22,448 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:25:22,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-12 22:25:22,448 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:25:22,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:25:22,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1351383597, now seen corresponding path program 30 times [2021-11-12 22:25:22,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:25:22,449 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962896671] [2021-11-12 22:25:22,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:25:22,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:25:22,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:25:23,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:25:23,067 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:25:23,067 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962896671] [2021-11-12 22:25:23,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962896671] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:25:23,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:25:23,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-11-12 22:25:23,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843766670] [2021-11-12 22:25:23,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:25:23,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-12 22:25:23,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:25:23,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-12 22:25:23,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=379, Unknown=0, NotChecked=0, Total=420 [2021-11-12 22:25:23,068 INFO L87 Difference]: Start difference. First operand 18868 states and 80459 transitions. Second operand has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:25:27,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:25:27,162 INFO L93 Difference]: Finished difference Result 23609 states and 101153 transitions. [2021-11-12 22:25:27,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-12 22:25:27,162 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:25:27,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:25:27,227 INFO L225 Difference]: With dead ends: 23609 [2021-11-12 22:25:27,227 INFO L226 Difference]: Without dead ends: 23338 [2021-11-12 22:25:27,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=246, Invalid=2616, Unknown=0, NotChecked=0, Total=2862 [2021-11-12 22:25:27,228 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 746 mSDsluCounter, 5118 mSDsCounter, 0 mSdLazyCounter, 5967 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2637.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 1670 SdHoareTripleChecker+Invalid, 6013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.96ms SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 5967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3042.14ms IncrementalHoareTripleChecker+Time [2021-11-12 22:25:27,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [746 Valid, 1670 Invalid, 6013 Unknown, 0 Unchecked, 17.96ms Time], IncrementalHoareTripleChecker [46 Valid, 5967 Invalid, 0 Unknown, 0 Unchecked, 3042.14ms Time] [2021-11-12 22:25:27,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23338 states. [2021-11-12 22:25:27,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23338 to 18940. [2021-11-12 22:25:27,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18940 states, 18939 states have (on average 4.263952690215956) internal successors, (80755), 18939 states have internal predecessors, (80755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:25:27,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18940 states to 18940 states and 80755 transitions. [2021-11-12 22:25:27,697 INFO L78 Accepts]: Start accepts. Automaton has 18940 states and 80755 transitions. Word has length 63 [2021-11-12 22:25:27,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:25:27,697 INFO L470 AbstractCegarLoop]: Abstraction has 18940 states and 80755 transitions. [2021-11-12 22:25:27,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:25:27,697 INFO L276 IsEmpty]: Start isEmpty. Operand 18940 states and 80755 transitions. [2021-11-12 22:25:27,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:25:27,946 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:25:27,946 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:25:27,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-12 22:25:27,947 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:25:27,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:25:27,947 INFO L85 PathProgramCache]: Analyzing trace with hash 2135812211, now seen corresponding path program 31 times [2021-11-12 22:25:27,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:25:27,947 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026001228] [2021-11-12 22:25:27,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:25:27,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:25:27,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:25:28,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:25:28,624 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:25:28,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026001228] [2021-11-12 22:25:28,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026001228] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:25:28,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:25:28,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-11-12 22:25:28,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688168788] [2021-11-12 22:25:28,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:25:28,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-12 22:25:28,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:25:28,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-12 22:25:28,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2021-11-12 22:25:28,625 INFO L87 Difference]: Start difference. First operand 18940 states and 80755 transitions. Second operand has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:25:34,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:25:34,476 INFO L93 Difference]: Finished difference Result 35383 states and 149168 transitions. [2021-11-12 22:25:34,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-11-12 22:25:34,477 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:25:34,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:25:34,573 INFO L225 Difference]: With dead ends: 35383 [2021-11-12 22:25:34,574 INFO L226 Difference]: Without dead ends: 35130 [2021-11-12 22:25:34,574 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1062 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=352, Invalid=3938, Unknown=0, NotChecked=0, Total=4290 [2021-11-12 22:25:34,574 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 1158 mSDsluCounter, 9153 mSDsCounter, 0 mSdLazyCounter, 10007 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3653.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1158 SdHoareTripleChecker+Valid, 3271 SdHoareTripleChecker+Invalid, 10092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.22ms SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 10007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4322.57ms IncrementalHoareTripleChecker+Time [2021-11-12 22:25:34,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1158 Valid, 3271 Invalid, 10092 Unknown, 0 Unchecked, 30.22ms Time], IncrementalHoareTripleChecker [85 Valid, 10007 Invalid, 0 Unknown, 0 Unchecked, 4322.57ms Time] [2021-11-12 22:25:34,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35130 states. [2021-11-12 22:25:35,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35130 to 19012. [2021-11-12 22:25:35,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19012 states, 19011 states have (on average 4.261480195676188) internal successors, (81015), 19011 states have internal predecessors, (81015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:25:35,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19012 states to 19012 states and 81015 transitions. [2021-11-12 22:25:35,242 INFO L78 Accepts]: Start accepts. Automaton has 19012 states and 81015 transitions. Word has length 63 [2021-11-12 22:25:35,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:25:35,242 INFO L470 AbstractCegarLoop]: Abstraction has 19012 states and 81015 transitions. [2021-11-12 22:25:35,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:25:35,243 INFO L276 IsEmpty]: Start isEmpty. Operand 19012 states and 81015 transitions. [2021-11-12 22:25:35,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:25:35,274 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:25:35,275 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:25:35,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-12 22:25:35,275 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:25:35,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:25:35,275 INFO L85 PathProgramCache]: Analyzing trace with hash -212717393, now seen corresponding path program 32 times [2021-11-12 22:25:35,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:25:35,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930308665] [2021-11-12 22:25:35,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:25:35,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:25:35,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:25:35,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:25:35,829 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:25:35,829 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930308665] [2021-11-12 22:25:35,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930308665] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:25:35,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:25:35,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-11-12 22:25:35,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291680611] [2021-11-12 22:25:35,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:25:35,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-12 22:25:35,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:25:35,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-12 22:25:35,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=378, Unknown=0, NotChecked=0, Total=420 [2021-11-12 22:25:35,831 INFO L87 Difference]: Start difference. First operand 19012 states and 81015 transitions. Second operand has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:25:40,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:25:40,254 INFO L93 Difference]: Finished difference Result 29513 states and 124499 transitions. [2021-11-12 22:25:40,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-11-12 22:25:40,254 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:25:40,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:25:40,334 INFO L225 Difference]: With dead ends: 29513 [2021-11-12 22:25:40,334 INFO L226 Difference]: Without dead ends: 29224 [2021-11-12 22:25:40,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=215, Invalid=2235, Unknown=0, NotChecked=0, Total=2450 [2021-11-12 22:25:40,335 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 912 mSDsluCounter, 7004 mSDsCounter, 0 mSdLazyCounter, 7484 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2660.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 912 SdHoareTripleChecker+Valid, 2492 SdHoareTripleChecker+Invalid, 7527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.76ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 7484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3151.48ms IncrementalHoareTripleChecker+Time [2021-11-12 22:25:40,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [912 Valid, 2492 Invalid, 7527 Unknown, 0 Unchecked, 21.76ms Time], IncrementalHoareTripleChecker [43 Valid, 7484 Invalid, 0 Unknown, 0 Unchecked, 3151.48ms Time] [2021-11-12 22:25:40,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29224 states. [2021-11-12 22:25:40,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29224 to 18940. [2021-11-12 22:25:40,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18940 states, 18939 states have (on average 4.262051850678494) internal successors, (80719), 18939 states have internal predecessors, (80719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:25:41,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18940 states to 18940 states and 80719 transitions. [2021-11-12 22:25:41,014 INFO L78 Accepts]: Start accepts. Automaton has 18940 states and 80719 transitions. Word has length 63 [2021-11-12 22:25:41,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:25:41,014 INFO L470 AbstractCegarLoop]: Abstraction has 18940 states and 80719 transitions. [2021-11-12 22:25:41,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:25:41,014 INFO L276 IsEmpty]: Start isEmpty. Operand 18940 states and 80719 transitions. [2021-11-12 22:25:41,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:25:41,047 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:25:41,047 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:25:41,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-12 22:25:41,047 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:25:41,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:25:41,047 INFO L85 PathProgramCache]: Analyzing trace with hash 279393267, now seen corresponding path program 33 times [2021-11-12 22:25:41,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:25:41,048 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032169255] [2021-11-12 22:25:41,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:25:41,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:25:41,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:25:41,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:25:41,710 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:25:41,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032169255] [2021-11-12 22:25:41,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032169255] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:25:41,710 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:25:41,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-11-12 22:25:41,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434977509] [2021-11-12 22:25:41,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:25:41,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-12 22:25:41,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:25:41,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-12 22:25:41,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=378, Unknown=0, NotChecked=0, Total=420 [2021-11-12 22:25:41,712 INFO L87 Difference]: Start difference. First operand 18940 states and 80719 transitions. Second operand has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:25:46,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:25:46,587 INFO L93 Difference]: Finished difference Result 31375 states and 131792 transitions. [2021-11-12 22:25:46,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-12 22:25:46,588 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:25:46,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:25:46,673 INFO L225 Difference]: With dead ends: 31375 [2021-11-12 22:25:46,673 INFO L226 Difference]: Without dead ends: 31104 [2021-11-12 22:25:46,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=226, Invalid=2324, Unknown=0, NotChecked=0, Total=2550 [2021-11-12 22:25:46,674 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 897 mSDsluCounter, 8012 mSDsCounter, 0 mSdLazyCounter, 8542 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3090.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 2845 SdHoareTripleChecker+Invalid, 8593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 25.12ms SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 8542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3655.02ms IncrementalHoareTripleChecker+Time [2021-11-12 22:25:46,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [897 Valid, 2845 Invalid, 8593 Unknown, 0 Unchecked, 25.12ms Time], IncrementalHoareTripleChecker [51 Valid, 8542 Invalid, 0 Unknown, 0 Unchecked, 3655.02ms Time] [2021-11-12 22:25:46,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31104 states. [2021-11-12 22:25:47,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31104 to 19012. [2021-11-12 22:25:47,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19012 states, 19011 states have (on average 4.257692914628373) internal successors, (80943), 19011 states have internal predecessors, (80943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:25:47,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19012 states to 19012 states and 80943 transitions. [2021-11-12 22:25:47,366 INFO L78 Accepts]: Start accepts. Automaton has 19012 states and 80943 transitions. Word has length 63 [2021-11-12 22:25:47,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:25:47,366 INFO L470 AbstractCegarLoop]: Abstraction has 19012 states and 80943 transitions. [2021-11-12 22:25:47,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:25:47,367 INFO L276 IsEmpty]: Start isEmpty. Operand 19012 states and 80943 transitions. [2021-11-12 22:25:47,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:25:47,403 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:25:47,403 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:25:47,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-12 22:25:47,403 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:25:47,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:25:47,404 INFO L85 PathProgramCache]: Analyzing trace with hash -528378221, now seen corresponding path program 34 times [2021-11-12 22:25:47,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:25:47,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327193072] [2021-11-12 22:25:47,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:25:47,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:25:47,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:25:48,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:25:48,263 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:25:48,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327193072] [2021-11-12 22:25:48,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327193072] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:25:48,264 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:25:48,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-11-12 22:25:48,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983980495] [2021-11-12 22:25:48,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:25:48,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-12 22:25:48,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:25:48,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-12 22:25:48,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=378, Unknown=0, NotChecked=0, Total=420 [2021-11-12 22:25:48,265 INFO L87 Difference]: Start difference. First operand 19012 states and 80943 transitions. Second operand has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:25:53,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:25:53,287 INFO L93 Difference]: Finished difference Result 31103 states and 130950 transitions. [2021-11-12 22:25:53,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-11-12 22:25:53,287 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:25:53,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:25:53,375 INFO L225 Difference]: With dead ends: 31103 [2021-11-12 22:25:53,375 INFO L226 Difference]: Without dead ends: 30762 [2021-11-12 22:25:53,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=204, Invalid=2052, Unknown=0, NotChecked=0, Total=2256 [2021-11-12 22:25:53,376 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 825 mSDsluCounter, 7562 mSDsCounter, 0 mSdLazyCounter, 8044 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3180.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 2709 SdHoareTripleChecker+Invalid, 8089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.46ms SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 8044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3762.71ms IncrementalHoareTripleChecker+Time [2021-11-12 22:25:53,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [825 Valid, 2709 Invalid, 8089 Unknown, 0 Unchecked, 27.46ms Time], IncrementalHoareTripleChecker [45 Valid, 8044 Invalid, 0 Unknown, 0 Unchecked, 3762.71ms Time] [2021-11-12 22:25:53,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30762 states. [2021-11-12 22:25:53,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30762 to 18924. [2021-11-12 22:25:53,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18924 states, 18923 states have (on average 4.261216509010199) internal successors, (80635), 18923 states have internal predecessors, (80635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:25:54,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18924 states to 18924 states and 80635 transitions. [2021-11-12 22:25:54,059 INFO L78 Accepts]: Start accepts. Automaton has 18924 states and 80635 transitions. Word has length 63 [2021-11-12 22:25:54,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:25:54,059 INFO L470 AbstractCegarLoop]: Abstraction has 18924 states and 80635 transitions. [2021-11-12 22:25:54,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:25:54,059 INFO L276 IsEmpty]: Start isEmpty. Operand 18924 states and 80635 transitions. [2021-11-12 22:25:54,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:25:54,093 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:25:54,094 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:25:54,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-12 22:25:54,094 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:25:54,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:25:54,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1378717513, now seen corresponding path program 35 times [2021-11-12 22:25:54,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:25:54,095 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010197231] [2021-11-12 22:25:54,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:25:54,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:25:54,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:25:54,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:25:54,690 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:25:54,691 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010197231] [2021-11-12 22:25:54,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010197231] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:25:54,691 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:25:54,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-11-12 22:25:54,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122239732] [2021-11-12 22:25:54,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:25:54,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-12 22:25:54,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:25:54,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-12 22:25:54,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=378, Unknown=0, NotChecked=0, Total=420 [2021-11-12 22:25:54,692 INFO L87 Difference]: Start difference. First operand 18924 states and 80635 transitions. Second operand has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:26:01,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:26:01,710 INFO L93 Difference]: Finished difference Result 33905 states and 145103 transitions. [2021-11-12 22:26:01,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-11-12 22:26:01,711 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:26:01,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:26:01,868 INFO L225 Difference]: With dead ends: 33905 [2021-11-12 22:26:01,868 INFO L226 Difference]: Without dead ends: 33644 [2021-11-12 22:26:01,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1330 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=464, Invalid=4792, Unknown=0, NotChecked=0, Total=5256 [2021-11-12 22:26:01,869 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 1185 mSDsluCounter, 9578 mSDsCounter, 0 mSdLazyCounter, 10605 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4179.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1185 SdHoareTripleChecker+Valid, 3472 SdHoareTripleChecker+Invalid, 10739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 33.95ms SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 10605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4915.52ms IncrementalHoareTripleChecker+Time [2021-11-12 22:26:01,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1185 Valid, 3472 Invalid, 10739 Unknown, 0 Unchecked, 33.95ms Time], IncrementalHoareTripleChecker [134 Valid, 10605 Invalid, 0 Unknown, 0 Unchecked, 4915.52ms Time] [2021-11-12 22:26:01,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33644 states. [2021-11-12 22:26:02,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33644 to 18984. [2021-11-12 22:26:02,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18984 states, 18983 states have (on average 4.258705157245957) internal successors, (80843), 18983 states have internal predecessors, (80843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:26:02,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18984 states to 18984 states and 80843 transitions. [2021-11-12 22:26:02,808 INFO L78 Accepts]: Start accepts. Automaton has 18984 states and 80843 transitions. Word has length 63 [2021-11-12 22:26:02,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:26:02,808 INFO L470 AbstractCegarLoop]: Abstraction has 18984 states and 80843 transitions. [2021-11-12 22:26:02,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:26:02,808 INFO L276 IsEmpty]: Start isEmpty. Operand 18984 states and 80843 transitions. [2021-11-12 22:26:02,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:26:02,855 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:26:02,855 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:26:02,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-12 22:26:02,855 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:26:02,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:26:02,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1165238401, now seen corresponding path program 36 times [2021-11-12 22:26:02,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:26:02,856 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193210879] [2021-11-12 22:26:02,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:26:02,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:26:02,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:26:03,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:26:03,620 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:26:03,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193210879] [2021-11-12 22:26:03,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193210879] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:26:03,620 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:26:03,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-11-12 22:26:03,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259854902] [2021-11-12 22:26:03,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:26:03,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-12 22:26:03,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:26:03,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-12 22:26:03,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=379, Unknown=0, NotChecked=0, Total=420 [2021-11-12 22:26:03,622 INFO L87 Difference]: Start difference. First operand 18984 states and 80843 transitions. Second operand has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:26:09,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:26:09,898 INFO L93 Difference]: Finished difference Result 25603 states and 110332 transitions. [2021-11-12 22:26:09,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-11-12 22:26:09,899 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:26:09,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:26:10,229 INFO L225 Difference]: With dead ends: 25603 [2021-11-12 22:26:10,230 INFO L226 Difference]: Without dead ends: 25252 [2021-11-12 22:26:10,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1684 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=526, Invalid=5636, Unknown=0, NotChecked=0, Total=6162 [2021-11-12 22:26:10,231 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 1261 mSDsluCounter, 5595 mSDsCounter, 0 mSdLazyCounter, 6659 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3384.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1261 SdHoareTripleChecker+Valid, 1880 SdHoareTripleChecker+Invalid, 6885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.91ms SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 6659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3955.55ms IncrementalHoareTripleChecker+Time [2021-11-12 22:26:10,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1261 Valid, 1880 Invalid, 6885 Unknown, 0 Unchecked, 27.91ms Time], IncrementalHoareTripleChecker [226 Valid, 6659 Invalid, 0 Unknown, 0 Unchecked, 3955.55ms Time] [2021-11-12 22:26:10,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25252 states. [2021-11-12 22:26:10,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25252 to 19000. [2021-11-12 22:26:10,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19000 states, 18999 states have (on average 4.258487288804674) internal successors, (80907), 18999 states have internal predecessors, (80907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:26:10,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19000 states to 19000 states and 80907 transitions. [2021-11-12 22:26:10,843 INFO L78 Accepts]: Start accepts. Automaton has 19000 states and 80907 transitions. Word has length 63 [2021-11-12 22:26:10,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:26:10,843 INFO L470 AbstractCegarLoop]: Abstraction has 19000 states and 80907 transitions. [2021-11-12 22:26:10,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:26:10,844 INFO L276 IsEmpty]: Start isEmpty. Operand 19000 states and 80907 transitions. [2021-11-12 22:26:10,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:26:10,890 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:26:10,890 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:26:10,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-11-12 22:26:10,891 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:26:10,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:26:10,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1433275701, now seen corresponding path program 37 times [2021-11-12 22:26:10,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:26:10,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639640599] [2021-11-12 22:26:10,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:26:10,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:26:10,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:26:11,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:26:11,839 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:26:11,840 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639640599] [2021-11-12 22:26:11,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639640599] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:26:11,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:26:11,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-11-12 22:26:11,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807019616] [2021-11-12 22:26:11,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:26:11,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-12 22:26:11,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:26:11,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-12 22:26:11,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=379, Unknown=0, NotChecked=0, Total=420 [2021-11-12 22:26:11,842 INFO L87 Difference]: Start difference. First operand 19000 states and 80907 transitions. Second operand has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:26:18,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:26:18,675 INFO L93 Difference]: Finished difference Result 34543 states and 150345 transitions. [2021-11-12 22:26:18,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-11-12 22:26:18,676 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:26:18,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:26:18,776 INFO L225 Difference]: With dead ends: 34543 [2021-11-12 22:26:18,776 INFO L226 Difference]: Without dead ends: 34322 [2021-11-12 22:26:18,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2137 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=608, Invalid=6874, Unknown=0, NotChecked=0, Total=7482 [2021-11-12 22:26:18,777 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 1263 mSDsluCounter, 7737 mSDsCounter, 0 mSdLazyCounter, 9381 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3671.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1263 SdHoareTripleChecker+Valid, 2696 SdHoareTripleChecker+Invalid, 9528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.53ms SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 9381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4503.39ms IncrementalHoareTripleChecker+Time [2021-11-12 22:26:18,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1263 Valid, 2696 Invalid, 9528 Unknown, 0 Unchecked, 29.53ms Time], IncrementalHoareTripleChecker [147 Valid, 9381 Invalid, 0 Unknown, 0 Unchecked, 4503.39ms Time] [2021-11-12 22:26:18,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34322 states. [2021-11-12 22:26:19,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34322 to 19032. [2021-11-12 22:26:19,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19032 states, 19031 states have (on average 4.256371183857916) internal successors, (81003), 19031 states have internal predecessors, (81003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:26:19,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19032 states to 19032 states and 81003 transitions. [2021-11-12 22:26:19,454 INFO L78 Accepts]: Start accepts. Automaton has 19032 states and 81003 transitions. Word has length 63 [2021-11-12 22:26:19,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:26:19,454 INFO L470 AbstractCegarLoop]: Abstraction has 19032 states and 81003 transitions. [2021-11-12 22:26:19,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:26:19,454 INFO L276 IsEmpty]: Start isEmpty. Operand 19032 states and 81003 transitions. [2021-11-12 22:26:19,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:26:19,487 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:26:19,487 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:26:19,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-11-12 22:26:19,487 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:26:19,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:26:19,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1901463371, now seen corresponding path program 38 times [2021-11-12 22:26:19,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:26:19,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293796084] [2021-11-12 22:26:19,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:26:19,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:26:19,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:26:20,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:26:20,205 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:26:20,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293796084] [2021-11-12 22:26:20,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293796084] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:26:20,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:26:20,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-11-12 22:26:20,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964520933] [2021-11-12 22:26:20,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:26:20,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-12 22:26:20,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:26:20,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-12 22:26:20,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=378, Unknown=0, NotChecked=0, Total=420 [2021-11-12 22:26:20,206 INFO L87 Difference]: Start difference. First operand 19032 states and 81003 transitions. Second operand has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:26:27,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:26:27,744 INFO L93 Difference]: Finished difference Result 41615 states and 179703 transitions. [2021-11-12 22:26:27,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-11-12 22:26:27,749 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-12 22:26:27,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:26:28,004 INFO L225 Difference]: With dead ends: 41615 [2021-11-12 22:26:28,004 INFO L226 Difference]: Without dead ends: 41382 [2021-11-12 22:26:28,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2032 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=640, Invalid=6670, Unknown=0, NotChecked=0, Total=7310 [2021-11-12 22:26:28,005 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 1254 mSDsluCounter, 10230 mSDsCounter, 0 mSdLazyCounter, 11497 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4373.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1254 SdHoareTripleChecker+Valid, 3748 SdHoareTripleChecker+Invalid, 11643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 33.39ms SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 11497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5144.50ms IncrementalHoareTripleChecker+Time [2021-11-12 22:26:28,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1254 Valid, 3748 Invalid, 11643 Unknown, 0 Unchecked, 33.39ms Time], IncrementalHoareTripleChecker [146 Valid, 11497 Invalid, 0 Unknown, 0 Unchecked, 5144.50ms Time] [2021-11-12 22:26:28,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41382 states. [2021-11-12 22:26:28,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41382 to 19056. [2021-11-12 22:26:28,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19056 states, 19055 states have (on average 4.256258199947521) internal successors, (81103), 19055 states have internal predecessors, (81103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:26:28,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19056 states to 19056 states and 81103 transitions. [2021-11-12 22:26:28,863 INFO L78 Accepts]: Start accepts. Automaton has 19056 states and 81103 transitions. Word has length 63 [2021-11-12 22:26:28,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:26:28,863 INFO L470 AbstractCegarLoop]: Abstraction has 19056 states and 81103 transitions. [2021-11-12 22:26:28,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.15) internal successors, (63), 20 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:26:28,863 INFO L276 IsEmpty]: Start isEmpty. Operand 19056 states and 81103 transitions. [2021-11-12 22:26:28,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 22:26:28,902 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:26:28,902 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:26:28,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-11-12 22:26:28,902 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2021-11-12 22:26:28,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:26:28,903 INFO L85 PathProgramCache]: Analyzing trace with hash 467395427, now seen corresponding path program 39 times [2021-11-12 22:26:28,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:26:28,903 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100165676] [2021-11-12 22:26:28,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:26:28,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:26:28,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:26:29,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:26:29,475 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:26:29,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100165676] [2021-11-12 22:26:29,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100165676] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:26:29,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:26:29,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-11-12 22:26:29,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118497940] [2021-11-12 22:26:29,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:26:29,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-12 22:26:29,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:26:29,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-12 22:26:29,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2021-11-12 22:26:29,478 INFO L87 Difference]: Start difference. First operand 19056 states and 81103 transitions. Second operand has 23 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)