./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadc6f67-a302-4516-abd5-9e6e4f25123a/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadc6f67-a302-4516-abd5-9e6e4f25123a/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadc6f67-a302-4516-abd5-9e6e4f25123a/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadc6f67-a302-4516-abd5-9e6e4f25123a/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadc6f67-a302-4516-abd5-9e6e4f25123a/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadc6f67-a302-4516-abd5-9e6e4f25123a/bin/utaipan-SDwSMHVbGG --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 c886984e5667ce67e7e25c39ff847e064ad5691b2dac8a241ced1b35982a954c ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:24:33,609 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:24:33,612 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:24:33,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:24:33,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:24:33,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:24:33,673 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:24:33,678 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:24:33,681 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:24:33,688 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:24:33,689 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:24:33,692 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:24:33,692 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:24:33,696 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:24:33,699 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:24:33,704 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:24:33,710 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:24:33,711 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:24:33,715 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:24:33,723 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:24:33,725 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:24:33,726 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:24:33,730 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:24:33,731 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:24:33,740 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:24:33,741 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:24:33,742 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:24:33,744 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:24:33,745 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:24:33,747 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:24:33,748 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:24:33,749 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:24:33,752 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:24:33,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:24:33,755 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:24:33,756 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:24:33,757 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:24:33,757 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:24:33,757 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:24:33,759 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:24:33,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:24:33,761 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadc6f67-a302-4516-abd5-9e6e4f25123a/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 05:24:33,814 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:24:33,814 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:24:33,816 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:24:33,816 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:24:33,816 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:24:33,817 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:24:33,817 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:24:33,817 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:24:33,824 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:24:33,824 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:24:33,825 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:24:33,826 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:24:33,826 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:24:33,826 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:24:33,827 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:24:33,828 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:24:33,828 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:24:33,828 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:24:33,829 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:24:33,829 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:24:33,829 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:24:33,829 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:24:33,830 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:24:33,830 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:24:33,830 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:24:33,831 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:24:33,831 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:24:33,831 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:24:33,831 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:24:33,833 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:24:33,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:24:33,834 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:24:33,834 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:24:33,835 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:24:33,835 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:24:33,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:24:33,835 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:24:33,836 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:24:33,836 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:24:33,836 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_dadc6f67-a302-4516-abd5-9e6e4f25123a/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadc6f67-a302-4516-abd5-9e6e4f25123a/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c886984e5667ce67e7e25c39ff847e064ad5691b2dac8a241ced1b35982a954c [2021-10-29 05:24:34,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:24:34,250 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:24:34,253 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:24:34,255 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:24:34,256 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:24:34,257 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadc6f67-a302-4516-abd5-9e6e4f25123a/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2021-10-29 05:24:34,328 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadc6f67-a302-4516-abd5-9e6e4f25123a/bin/utaipan-SDwSMHVbGG/data/273745922/a60c773c364f46098df6d02c00b4ddd5/FLAGf45056cd4 [2021-10-29 05:24:35,074 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:24:35,075 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadc6f67-a302-4516-abd5-9e6e4f25123a/sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2021-10-29 05:24:35,108 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadc6f67-a302-4516-abd5-9e6e4f25123a/bin/utaipan-SDwSMHVbGG/data/273745922/a60c773c364f46098df6d02c00b4ddd5/FLAGf45056cd4 [2021-10-29 05:24:35,266 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadc6f67-a302-4516-abd5-9e6e4f25123a/bin/utaipan-SDwSMHVbGG/data/273745922/a60c773c364f46098df6d02c00b4ddd5 [2021-10-29 05:24:35,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:24:35,270 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:24:35,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:24:35,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:24:35,287 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:24:35,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:24:35" (1/1) ... [2021-10-29 05:24:35,293 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47e9b208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:24:35, skipping insertion in model container [2021-10-29 05:24:35,294 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:24:35" (1/1) ... [2021-10-29 05:24:35,301 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:24:35,361 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:24:35,578 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_dadc6f67-a302-4516-abd5-9e6e4f25123a/sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i[825,838] [2021-10-29 05:24:35,954 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:24:35,970 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:24:35,985 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_dadc6f67-a302-4516-abd5-9e6e4f25123a/sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i[825,838] [2021-10-29 05:24:36,063 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:24:36,146 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:24:36,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:24:36 WrapperNode [2021-10-29 05:24:36,147 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:24:36,148 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:24:36,148 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:24:36,149 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:24:36,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:24:36" (1/1) ... [2021-10-29 05:24:36,182 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:24:36" (1/1) ... [2021-10-29 05:24:36,217 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:24:36,223 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:24:36,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:24:36,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:24:36,234 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:24:36" (1/1) ... [2021-10-29 05:24:36,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:24:36" (1/1) ... [2021-10-29 05:24:36,247 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:24:36" (1/1) ... [2021-10-29 05:24:36,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:24:36" (1/1) ... [2021-10-29 05:24:36,270 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:24:36" (1/1) ... [2021-10-29 05:24:36,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:24:36" (1/1) ... [2021-10-29 05:24:36,297 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:24:36" (1/1) ... [2021-10-29 05:24:36,314 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:24:36,315 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:24:36,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:24:36,322 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:24:36,323 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:24:36" (1/1) ... [2021-10-29 05:24:36,332 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:24:36,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadc6f67-a302-4516-abd5-9e6e4f25123a/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:24:36,356 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadc6f67-a302-4516-abd5-9e6e4f25123a/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:24:36,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadc6f67-a302-4516-abd5-9e6e4f25123a/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:24:36,414 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2021-10-29 05:24:36,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:24:36,414 INFO L130 BoogieDeclarations]: Found specification of procedure generate [2021-10-29 05:24:36,415 INFO L138 BoogieDeclarations]: Found implementation of procedure generate [2021-10-29 05:24:36,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 05:24:36,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 05:24:36,415 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-29 05:24:36,415 INFO L130 BoogieDeclarations]: Found specification of procedure dispose [2021-10-29 05:24:36,416 INFO L138 BoogieDeclarations]: Found implementation of procedure dispose [2021-10-29 05:24:36,416 INFO L130 BoogieDeclarations]: Found specification of procedure process [2021-10-29 05:24:36,416 INFO L138 BoogieDeclarations]: Found implementation of procedure process [2021-10-29 05:24:36,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 05:24:36,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:24:36,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:24:36,419 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-29 05:24:37,015 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:24:37,015 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-29 05:24:37,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:24:37 BoogieIcfgContainer [2021-10-29 05:24:37,018 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:24:37,020 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:24:37,020 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:24:37,024 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:24:37,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:24:35" (1/3) ... [2021-10-29 05:24:37,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c30aaa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:24:37, skipping insertion in model container [2021-10-29 05:24:37,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:24:36" (2/3) ... [2021-10-29 05:24:37,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c30aaa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:24:37, skipping insertion in model container [2021-10-29 05:24:37,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:24:37" (3/3) ... [2021-10-29 05:24:37,028 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_04-priv_multi_true.i [2021-10-29 05:24:37,034 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-29 05:24:37,035 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:24:37,035 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-29 05:24:37,035 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-29 05:24:37,095 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,095 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,096 WARN L313 ript$VariableManager]: TermVariabe processThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,096 WARN L313 ript$VariableManager]: TermVariabe processThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,096 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,096 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,096 WARN L313 ript$VariableManager]: TermVariabe processThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,097 WARN L313 ript$VariableManager]: TermVariabe processThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,097 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,097 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,097 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,098 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,098 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,098 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,099 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,099 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,099 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,099 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,100 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,100 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,100 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,100 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,100 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,101 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,101 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,101 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,101 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,102 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,102 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,102 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,102 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,103 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,103 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,103 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,103 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,104 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,104 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,104 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,105 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,105 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,105 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,105 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,106 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,106 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,107 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,107 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,107 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,107 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,108 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,108 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,108 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0_~p~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,108 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0_~p~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,109 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,109 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,110 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,110 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,110 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,111 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,111 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,111 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,112 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0_~p~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,112 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0_~p~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,113 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,113 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,113 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0_~p~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,113 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,114 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0_~p~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,114 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,114 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,115 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,115 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,115 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,115 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,116 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,116 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,116 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,116 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,117 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,117 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,117 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,118 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,119 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,119 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,119 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,120 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,120 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,120 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,120 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,121 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,121 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,121 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,122 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,122 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,123 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,123 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,123 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,124 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,124 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,124 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,124 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,125 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,125 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,126 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,126 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,126 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,126 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,127 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,127 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,127 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,128 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,128 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,128 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,128 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,129 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,129 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,129 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,130 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,130 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,130 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,130 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,134 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,135 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,135 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#t~ret13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,135 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,135 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,136 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,136 WARN L313 ript$VariableManager]: TermVariabe |disposeThread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,136 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0_~p~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,137 WARN L313 ript$VariableManager]: TermVariabe disposeThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,172 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,172 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,172 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,173 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,173 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,173 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#t~ret5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,173 WARN L313 ript$VariableManager]: TermVariabe generateThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,173 WARN L313 ript$VariableManager]: TermVariabe |generateThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,180 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,180 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,180 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,181 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~ret11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,181 WARN L313 ript$VariableManager]: TermVariabe processThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,181 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,181 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,182 WARN L313 ript$VariableManager]: TermVariabe processThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,182 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#t~post7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,182 WARN L313 ript$VariableManager]: TermVariabe |processThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-29 05:24:37,191 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-29 05:24:37,267 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:24:37,279 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 [2021-10-29 05:24:37,280 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-29 05:24:37,319 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-29 05:24:37,339 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 147 places, 149 transitions, 313 flow [2021-10-29 05:24:37,344 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 147 places, 149 transitions, 313 flow [2021-10-29 05:24:37,347 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 147 places, 149 transitions, 313 flow [2021-10-29 05:24:37,475 INFO L129 PetriNetUnfolder]: 12/146 cut-off events. [2021-10-29 05:24:37,475 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-29 05:24:37,486 INFO L84 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 146 events. 12/146 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 312 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 119. Up to 3 conditions per place. [2021-10-29 05:24:37,500 INFO L116 LiptonReduction]: Number of co-enabled transitions 8580 [2021-10-29 05:24:45,390 INFO L131 LiptonReduction]: Checked pairs total: 20185 [2021-10-29 05:24:45,390 INFO L133 LiptonReduction]: Total number of compositions: 127 [2021-10-29 05:24:45,400 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 51 places, 48 transitions, 111 flow [2021-10-29 05:24:45,718 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5474 states, 5471 states have (on average 4.282946444891245) internal successors, (23432), 5473 states have internal predecessors, (23432), 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) [2021-10-29 05:24:45,744 INFO L276 IsEmpty]: Start isEmpty. Operand has 5474 states, 5471 states have (on average 4.282946444891245) internal successors, (23432), 5473 states have internal predecessors, (23432), 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) [2021-10-29 05:24:45,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 05:24:45,757 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:24:45,758 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:24:45,759 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-10-29 05:24:45,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:24:45,765 INFO L85 PathProgramCache]: Analyzing trace with hash -569194414, now seen corresponding path program 1 times [2021-10-29 05:24:45,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:24:45,777 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117051190] [2021-10-29 05:24:45,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:24:45,778 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:24:46,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:24:46,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:24:46,265 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:24:46,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117051190] [2021-10-29 05:24:46,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117051190] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:24:46,267 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:24:46,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-29 05:24:46,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399771555] [2021-10-29 05:24:46,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:24:46,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:24:46,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:24:46,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:24:46,319 INFO L87 Difference]: Start difference. First operand has 5474 states, 5471 states have (on average 4.282946444891245) internal successors, (23432), 5473 states have internal predecessors, (23432), 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 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-10-29 05:24:46,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:24:46,561 INFO L93 Difference]: Finished difference Result 6000 states and 25080 transitions. [2021-10-29 05:24:46,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:24:46,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2021-10-29 05:24:46,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:24:46,762 INFO L225 Difference]: With dead ends: 6000 [2021-10-29 05:24:46,763 INFO L226 Difference]: Without dead ends: 6000 [2021-10-29 05:24:46,764 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:24:46,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6000 states. [2021-10-29 05:24:47,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6000 to 5769. [2021-10-29 05:24:47,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5769 states, 5769 states have (on average 4.216675333680014) internal successors, (24326), 5768 states have internal predecessors, (24326), 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) [2021-10-29 05:24:47,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5769 states to 5769 states and 24326 transitions. [2021-10-29 05:24:47,341 INFO L78 Accepts]: Start accepts. Automaton has 5769 states and 24326 transitions. Word has length 10 [2021-10-29 05:24:47,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:24:47,342 INFO L470 AbstractCegarLoop]: Abstraction has 5769 states and 24326 transitions. [2021-10-29 05:24:47,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2021-10-29 05:24:47,343 INFO L276 IsEmpty]: Start isEmpty. Operand 5769 states and 24326 transitions. [2021-10-29 05:24:47,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 05:24:47,354 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:24:47,355 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:24:47,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 05:24:47,359 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting disposeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-10-29 05:24:47,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:24:47,361 INFO L85 PathProgramCache]: Analyzing trace with hash -519482231, now seen corresponding path program 1 times [2021-10-29 05:24:47,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:24:47,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311791372] [2021-10-29 05:24:47,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:24:47,363 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:24:47,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:24:47,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:24:47,663 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:24:47,663 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311791372] [2021-10-29 05:24:47,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311791372] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:24:47,664 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:24:47,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 05:24:47,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735091657] [2021-10-29 05:24:47,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:24:47,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:24:47,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:24:47,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:24:47,668 INFO L87 Difference]: Start difference. First operand 5769 states and 24326 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2021-10-29 05:24:48,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:24:48,088 INFO L93 Difference]: Finished difference Result 11466 states and 48066 transitions. [2021-10-29 05:24:48,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:24:48,089 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2021-10-29 05:24:48,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:24:48,277 INFO L225 Difference]: With dead ends: 11466 [2021-10-29 05:24:48,278 INFO L226 Difference]: Without dead ends: 11466 [2021-10-29 05:24:48,279 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:24:48,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11466 states. [2021-10-29 05:24:49,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11466 to 7584. [2021-10-29 05:24:49,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7584 states, 7584 states have (on average 4.150184599156118) internal successors, (31475), 7583 states have internal predecessors, (31475), 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) [2021-10-29 05:24:49,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7584 states to 7584 states and 31475 transitions. [2021-10-29 05:24:49,388 INFO L78 Accepts]: Start accepts. Automaton has 7584 states and 31475 transitions. Word has length 11 [2021-10-29 05:24:49,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:24:49,389 INFO L470 AbstractCegarLoop]: Abstraction has 7584 states and 31475 transitions. [2021-10-29 05:24:49,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2021-10-29 05:24:49,390 INFO L276 IsEmpty]: Start isEmpty. Operand 7584 states and 31475 transitions. [2021-10-29 05:24:49,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 05:24:49,394 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:24:49,394 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:24:49,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 05:24:49,394 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-10-29 05:24:49,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:24:49,396 INFO L85 PathProgramCache]: Analyzing trace with hash 283877645, now seen corresponding path program 1 times [2021-10-29 05:24:49,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:24:49,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184422444] [2021-10-29 05:24:49,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:24:49,398 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:24:49,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:24:49,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:24:49,526 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:24:49,526 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184422444] [2021-10-29 05:24:49,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184422444] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:24:49,527 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:24:49,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:24:49,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273633711] [2021-10-29 05:24:49,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:24:49,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:24:49,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:24:49,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:24:49,536 INFO L87 Difference]: Start difference. First operand 7584 states and 31475 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2021-10-29 05:24:50,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:24:50,050 INFO L93 Difference]: Finished difference Result 13736 states and 54886 transitions. [2021-10-29 05:24:50,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:24:50,052 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2021-10-29 05:24:50,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:24:50,379 INFO L225 Difference]: With dead ends: 13736 [2021-10-29 05:24:50,379 INFO L226 Difference]: Without dead ends: 13736 [2021-10-29 05:24:50,402 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:24:50,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13736 states. [2021-10-29 05:24:51,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13736 to 10944. [2021-10-29 05:24:51,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10944 states, 10943 states have (on average 4.051905327606689) internal successors, (44340), 10943 states have internal predecessors, (44340), 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) [2021-10-29 05:24:51,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10944 states to 10944 states and 44340 transitions. [2021-10-29 05:24:51,213 INFO L78 Accepts]: Start accepts. Automaton has 10944 states and 44340 transitions. Word has length 13 [2021-10-29 05:24:51,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:24:51,214 INFO L470 AbstractCegarLoop]: Abstraction has 10944 states and 44340 transitions. [2021-10-29 05:24:51,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2021-10-29 05:24:51,214 INFO L276 IsEmpty]: Start isEmpty. Operand 10944 states and 44340 transitions. [2021-10-29 05:24:51,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 05:24:51,219 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:24:51,219 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:24:51,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-29 05:24:51,220 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-10-29 05:24:51,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:24:51,220 INFO L85 PathProgramCache]: Analyzing trace with hash -583870210, now seen corresponding path program 1 times [2021-10-29 05:24:51,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:24:51,221 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880999761] [2021-10-29 05:24:51,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:24:51,222 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:24:51,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:24:51,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:24:51,407 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:24:51,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880999761] [2021-10-29 05:24:51,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880999761] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:24:51,409 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:24:51,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 05:24:51,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219033088] [2021-10-29 05:24:51,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:24:51,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:24:51,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:24:51,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:24:51,411 INFO L87 Difference]: Start difference. First operand 10944 states and 44340 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2021-10-29 05:24:51,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:24:51,817 INFO L93 Difference]: Finished difference Result 11679 states and 46629 transitions. [2021-10-29 05:24:51,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:24:51,818 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2021-10-29 05:24:51,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:24:52,051 INFO L225 Difference]: With dead ends: 11679 [2021-10-29 05:24:52,051 INFO L226 Difference]: Without dead ends: 11679 [2021-10-29 05:24:52,051 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:24:52,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11679 states. [2021-10-29 05:24:52,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11679 to 10656. [2021-10-29 05:24:52,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10656 states, 10655 states have (on average 4.008916001877053) internal successors, (42715), 10655 states have internal predecessors, (42715), 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) [2021-10-29 05:24:52,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10656 states to 10656 states and 42715 transitions. [2021-10-29 05:24:52,677 INFO L78 Accepts]: Start accepts. Automaton has 10656 states and 42715 transitions. Word has length 15 [2021-10-29 05:24:52,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:24:52,677 INFO L470 AbstractCegarLoop]: Abstraction has 10656 states and 42715 transitions. [2021-10-29 05:24:52,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2021-10-29 05:24:52,678 INFO L276 IsEmpty]: Start isEmpty. Operand 10656 states and 42715 transitions. [2021-10-29 05:24:52,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-29 05:24:52,683 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:24:52,683 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:24:52,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-29 05:24:52,684 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-10-29 05:24:52,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:24:52,685 INFO L85 PathProgramCache]: Analyzing trace with hash -852238516, now seen corresponding path program 1 times [2021-10-29 05:24:52,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:24:52,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964708336] [2021-10-29 05:24:52,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:24:52,690 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:24:52,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:24:52,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:24:52,898 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:24:52,899 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964708336] [2021-10-29 05:24:52,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964708336] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:24:52,899 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:24:52,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:24:52,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378311093] [2021-10-29 05:24:52,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:24:52,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:24:52,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:24:52,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:24:52,909 INFO L87 Difference]: Start difference. First operand 10656 states and 42715 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-10-29 05:24:53,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:24:53,013 INFO L93 Difference]: Finished difference Result 2557 states and 8688 transitions. [2021-10-29 05:24:53,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:24:53,014 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2021-10-29 05:24:53,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:24:53,028 INFO L225 Difference]: With dead ends: 2557 [2021-10-29 05:24:53,029 INFO L226 Difference]: Without dead ends: 2557 [2021-10-29 05:24:53,029 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:24:53,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2557 states. [2021-10-29 05:24:53,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2557 to 1727. [2021-10-29 05:24:53,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1727 states, 1726 states have (on average 3.362108922363847) internal successors, (5803), 1726 states have internal predecessors, (5803), 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) [2021-10-29 05:24:53,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1727 states to 1727 states and 5803 transitions. [2021-10-29 05:24:53,242 INFO L78 Accepts]: Start accepts. Automaton has 1727 states and 5803 transitions. Word has length 18 [2021-10-29 05:24:53,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:24:53,242 INFO L470 AbstractCegarLoop]: Abstraction has 1727 states and 5803 transitions. [2021-10-29 05:24:53,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-10-29 05:24:53,243 INFO L276 IsEmpty]: Start isEmpty. Operand 1727 states and 5803 transitions. [2021-10-29 05:24:53,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-29 05:24:53,246 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:24:53,258 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:24:53,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-29 05:24:53,259 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting disposeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-10-29 05:24:53,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:24:53,259 INFO L85 PathProgramCache]: Analyzing trace with hash 500480123, now seen corresponding path program 1 times [2021-10-29 05:24:53,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:24:53,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616175855] [2021-10-29 05:24:53,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:24:53,260 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:24:53,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:24:53,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:24:53,367 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:24:53,371 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616175855] [2021-10-29 05:24:53,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616175855] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:24:53,372 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:24:53,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 05:24:53,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737192268] [2021-10-29 05:24:53,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:24:53,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:24:53,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:24:53,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:24:53,374 INFO L87 Difference]: Start difference. First operand 1727 states and 5803 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 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) [2021-10-29 05:24:53,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:24:53,458 INFO L93 Difference]: Finished difference Result 1388 states and 4482 transitions. [2021-10-29 05:24:53,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:24:53,458 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 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 18 [2021-10-29 05:24:53,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:24:53,465 INFO L225 Difference]: With dead ends: 1388 [2021-10-29 05:24:53,465 INFO L226 Difference]: Without dead ends: 1388 [2021-10-29 05:24:53,465 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:24:53,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2021-10-29 05:24:53,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 1364. [2021-10-29 05:24:53,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1364 states, 1362 states have (on average 3.2415565345080766) internal successors, (4415), 1363 states have internal predecessors, (4415), 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) [2021-10-29 05:24:53,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1364 states to 1364 states and 4415 transitions. [2021-10-29 05:24:53,505 INFO L78 Accepts]: Start accepts. Automaton has 1364 states and 4415 transitions. Word has length 18 [2021-10-29 05:24:53,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:24:53,505 INFO L470 AbstractCegarLoop]: Abstraction has 1364 states and 4415 transitions. [2021-10-29 05:24:53,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 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) [2021-10-29 05:24:53,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1364 states and 4415 transitions. [2021-10-29 05:24:53,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-29 05:24:53,509 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:24:53,509 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:24:53,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-29 05:24:53,510 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting disposeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-10-29 05:24:53,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:24:53,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1810665581, now seen corresponding path program 1 times [2021-10-29 05:24:53,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:24:53,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950567702] [2021-10-29 05:24:53,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:24:53,516 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:24:53,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:24:53,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:24:53,707 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:24:53,708 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950567702] [2021-10-29 05:24:53,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950567702] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:24:53,708 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:24:53,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-29 05:24:53,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073054664] [2021-10-29 05:24:53,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 05:24:53,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:24:53,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 05:24:53,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:24:53,712 INFO L87 Difference]: Start difference. First operand 1364 states and 4415 transitions. Second operand has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 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) [2021-10-29 05:24:54,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:24:54,330 INFO L93 Difference]: Finished difference Result 3984 states and 12581 transitions. [2021-10-29 05:24:54,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-29 05:24:54,331 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 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 20 [2021-10-29 05:24:54,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:24:54,352 INFO L225 Difference]: With dead ends: 3984 [2021-10-29 05:24:54,352 INFO L226 Difference]: Without dead ends: 3984 [2021-10-29 05:24:54,354 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2021-10-29 05:24:54,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3984 states. [2021-10-29 05:24:54,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3984 to 2235. [2021-10-29 05:24:54,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2235 states, 2233 states have (on average 3.22704881325571) internal successors, (7206), 2234 states have internal predecessors, (7206), 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) [2021-10-29 05:24:54,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2235 states to 2235 states and 7206 transitions. [2021-10-29 05:24:54,614 INFO L78 Accepts]: Start accepts. Automaton has 2235 states and 7206 transitions. Word has length 20 [2021-10-29 05:24:54,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:24:54,615 INFO L470 AbstractCegarLoop]: Abstraction has 2235 states and 7206 transitions. [2021-10-29 05:24:54,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 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) [2021-10-29 05:24:54,615 INFO L276 IsEmpty]: Start isEmpty. Operand 2235 states and 7206 transitions. [2021-10-29 05:24:54,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-29 05:24:54,622 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:24:54,623 INFO L513 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] [2021-10-29 05:24:54,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-29 05:24:54,623 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-10-29 05:24:54,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:24:54,624 INFO L85 PathProgramCache]: Analyzing trace with hash 464424926, now seen corresponding path program 1 times [2021-10-29 05:24:54,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:24:54,625 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368792301] [2021-10-29 05:24:54,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:24:54,625 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:24:54,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:24:54,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:24:54,793 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:24:54,793 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368792301] [2021-10-29 05:24:54,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368792301] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:24:54,794 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:24:54,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 05:24:54,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596453548] [2021-10-29 05:24:54,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:24:54,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:24:54,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:24:54,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:24:54,798 INFO L87 Difference]: Start difference. First operand 2235 states and 7206 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 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) [2021-10-29 05:24:54,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:24:54,915 INFO L93 Difference]: Finished difference Result 2531 states and 8111 transitions. [2021-10-29 05:24:54,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:24:54,916 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 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 22 [2021-10-29 05:24:54,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:24:54,930 INFO L225 Difference]: With dead ends: 2531 [2021-10-29 05:24:54,930 INFO L226 Difference]: Without dead ends: 2531 [2021-10-29 05:24:54,930 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:24:54,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2531 states. [2021-10-29 05:24:55,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2531 to 2232. [2021-10-29 05:24:55,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2232 states, 2230 states have (on average 3.222421524663677) internal successors, (7186), 2231 states have internal predecessors, (7186), 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) [2021-10-29 05:24:55,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2232 states to 2232 states and 7186 transitions. [2021-10-29 05:24:55,027 INFO L78 Accepts]: Start accepts. Automaton has 2232 states and 7186 transitions. Word has length 22 [2021-10-29 05:24:55,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:24:55,027 INFO L470 AbstractCegarLoop]: Abstraction has 2232 states and 7186 transitions. [2021-10-29 05:24:55,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 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) [2021-10-29 05:24:55,028 INFO L276 IsEmpty]: Start isEmpty. Operand 2232 states and 7186 transitions. [2021-10-29 05:24:55,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-29 05:24:55,035 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:24:55,035 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:24:55,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-29 05:24:55,036 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting disposeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-10-29 05:24:55,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:24:55,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1771096827, now seen corresponding path program 1 times [2021-10-29 05:24:55,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:24:55,037 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296186348] [2021-10-29 05:24:55,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:24:55,037 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:24:55,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:24:55,361 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 05:24:55,362 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:24:55,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296186348] [2021-10-29 05:24:55,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296186348] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-29 05:24:55,364 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [504314259] [2021-10-29 05:24:55,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:24:55,365 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:24:55,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadc6f67-a302-4516-abd5-9e6e4f25123a/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:24:55,370 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadc6f67-a302-4516-abd5-9e6e4f25123a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:24:55,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadc6f67-a302-4516-abd5-9e6e4f25123a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-29 05:24:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:24:55,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-29 05:24:55,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:24:55,892 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 05:24:55,893 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:24:56,254 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 05:24:56,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [504314259] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:24:56,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1668597397] [2021-10-29 05:24:56,264 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:609) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-29 05:24:56,272 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-29 05:24:56,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 7 [2021-10-29 05:24:56,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698005741] [2021-10-29 05:24:56,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-29 05:24:56,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:24:56,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-29 05:24:56,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-29 05:24:56,277 INFO L87 Difference]: Start difference. First operand 2232 states and 7186 transitions. Second operand has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 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) [2021-10-29 05:24:56,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:24:56,761 INFO L93 Difference]: Finished difference Result 2730 states and 8517 transitions. [2021-10-29 05:24:56,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-29 05:24:56,762 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 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 31 [2021-10-29 05:24:56,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:24:56,765 INFO L225 Difference]: With dead ends: 2730 [2021-10-29 05:24:56,765 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 05:24:56,766 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 59 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2021-10-29 05:24:56,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 05:24:56,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 05:24:56,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-10-29 05:24:56,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 05:24:56,767 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2021-10-29 05:24:56,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:24:56,768 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 05:24:56,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 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) [2021-10-29 05:24:56,768 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 05:24:56,768 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 05:24:56,771 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:56,772 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-29 05:24:56,772 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-29 05:24:56,772 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-29 05:24:56,773 INFO L764 garLoopResultBuilder]: Registering result SAFE for location disposeErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:56,773 INFO L764 garLoopResultBuilder]: Registering result SAFE for location disposeErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:24:56,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadc6f67-a302-4516-abd5-9e6e4f25123a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-29 05:24:56,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadc6f67-a302-4516-abd5-9e6e4f25123a/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:24:57,000 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:24:57,004 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-29 05:24:57,004 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:24:57,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:24:57 BasicIcfg [2021-10-29 05:24:57,006 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:24:57,007 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:24:57,007 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:24:57,007 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:24:57,008 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:24:37" (3/4) ... [2021-10-29 05:24:57,011 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 05:24:57,017 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure process [2021-10-29 05:24:57,018 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure dispose [2021-10-29 05:24:57,018 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure generate [2021-10-29 05:24:57,023 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-29 05:24:57,023 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-29 05:24:57,023 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:24:57,024 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:24:57,065 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadc6f67-a302-4516-abd5-9e6e4f25123a/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 05:24:57,065 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:24:57,067 INFO L168 Benchmark]: Toolchain (without parser) took 21795.89 ms. Allocated memory was 102.8 MB in the beginning and 3.4 GB in the end (delta: 3.3 GB). Free memory was 69.1 MB in the beginning and 3.1 GB in the end (delta: -3.0 GB). Peak memory consumption was 278.7 MB. Max. memory is 16.1 GB. [2021-10-29 05:24:57,068 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 102.8 MB. Free memory is still 55.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:24:57,068 INFO L168 Benchmark]: CACSL2BoogieTranslator took 864.46 ms. Allocated memory was 102.8 MB in the beginning and 125.8 MB in the end (delta: 23.1 MB). Free memory was 69.1 MB in the beginning and 81.3 MB in the end (delta: -12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 05:24:57,069 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.38 ms. Allocated memory is still 125.8 MB. Free memory was 81.3 MB in the beginning and 79.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:24:57,069 INFO L168 Benchmark]: Boogie Preprocessor took 91.02 ms. Allocated memory is still 125.8 MB. Free memory was 79.1 MB in the beginning and 76.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:24:57,069 INFO L168 Benchmark]: RCFGBuilder took 703.00 ms. Allocated memory is still 125.8 MB. Free memory was 76.4 MB in the beginning and 58.1 MB in the end (delta: 18.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-29 05:24:57,070 INFO L168 Benchmark]: TraceAbstraction took 19986.27 ms. Allocated memory was 125.8 MB in the beginning and 3.4 GB in the end (delta: 3.3 GB). Free memory was 57.5 MB in the beginning and 3.1 GB in the end (delta: -3.0 GB). Peak memory consumption was 243.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:24:57,070 INFO L168 Benchmark]: Witness Printer took 58.69 ms. Allocated memory is still 3.4 GB. Free memory was 3.1 GB in the beginning and 3.1 GB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:24:57,073 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 102.8 MB. Free memory is still 55.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 864.46 ms. Allocated memory was 102.8 MB in the beginning and 125.8 MB in the end (delta: 23.1 MB). Free memory was 69.1 MB in the beginning and 81.3 MB in the end (delta: -12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 69.38 ms. Allocated memory is still 125.8 MB. Free memory was 81.3 MB in the beginning and 79.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 91.02 ms. Allocated memory is still 125.8 MB. Free memory was 79.1 MB in the beginning and 76.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 703.00 ms. Allocated memory is still 125.8 MB. Free memory was 76.4 MB in the beginning and 58.1 MB in the end (delta: 18.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 19986.27 ms. Allocated memory was 125.8 MB in the beginning and 3.4 GB in the end (delta: 3.3 GB). Free memory was 57.5 MB in the beginning and 3.1 GB in the end (delta: -3.0 GB). Peak memory consumption was 243.4 MB. Max. memory is 16.1 GB. * Witness Printer took 58.69 ms. Allocated memory is still 3.4 GB. Free memory was 3.1 GB in the beginning and 3.1 GB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.0s, 147 PlacesBefore, 51 PlacesAfterwards, 149 TransitionsBefore, 48 TransitionsAfterwards, 8580 CoEnabledTransitionPairs, 8 FixpointIterations, 29 TrivialSequentialCompositions, 71 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 22 ConcurrentYvCompositions, 5 ChoiceCompositions, 127 TotalNumberOfCompositions, 20185 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10928, positive: 10515, positive conditional: 0, positive unconditional: 10515, negative: 413, negative conditional: 0, negative unconditional: 413, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5856, positive: 5771, positive conditional: 0, positive unconditional: 5771, negative: 85, negative conditional: 0, negative unconditional: 85, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5856, positive: 5616, positive conditional: 0, positive unconditional: 5616, negative: 240, negative conditional: 0, negative unconditional: 240, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 240, positive: 155, positive conditional: 0, positive unconditional: 155, negative: 85, negative conditional: 0, negative unconditional: 85, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 463, positive: 231, positive conditional: 0, positive unconditional: 231, negative: 231, negative conditional: 0, negative unconditional: 231, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 10928, positive: 4744, positive conditional: 0, positive unconditional: 4744, negative: 328, negative conditional: 0, negative unconditional: 328, unknown: 5856, unknown conditional: 0, unknown unconditional: 5856] , Statistics on independence cache: Total cache size (in pairs): 615, Positive cache size: 562, Positive conditional cache size: 0, Positive unconditional cache size: 562, Negative cache size: 53, Negative conditional cache size: 0, Negative unconditional cache size: 53 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 204 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 19.7s, OverallIterations: 9, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.4s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 523 SDtfs, 808 SDslu, 1228 SDs, 0 SdLazy, 705 SolverSat, 81 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 131 GetRequests, 65 SyntacticMatches, 6 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10944occurred in iteration=3, InterpolantAutomatonStates: 68, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.7s AutomataMinimizationTime, 9 MinimizatonAttempts, 10830 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 189 NumberOfCodeBlocks, 189 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 209 ConstructedInterpolants, 0 QuantifiedInterpolants, 1336 SizeOfPredicates, 8 NumberOfNonLiveVariables, 185 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 18/24 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-29 05:24:57,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadc6f67-a302-4516-abd5-9e6e4f25123a/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...