./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/chl-sre-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b9e90-0d55-48e2-8502-9f07cb372389/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b9e90-0d55-48e2-8502-9f07cb372389/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b9e90-0d55-48e2-8502-9f07cb372389/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b9e90-0d55-48e2-8502-9f07cb372389/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/chl-sre-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b9e90-0d55-48e2-8502-9f07cb372389/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b9e90-0d55-48e2-8502-9f07cb372389/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 672ab63d50f6d257836fb16bc257f69b3b166ee79333dc7cfe86a969c93c0f7f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:19:13,043 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:19:13,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:19:13,099 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:19:13,100 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:19:13,104 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:19:13,106 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:19:13,110 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:19:13,113 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:19:13,118 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:19:13,119 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:19:13,121 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:19:13,122 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:19:13,124 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:19:13,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:19:13,134 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:19:13,136 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:19:13,137 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:19:13,139 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:19:13,147 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:19:13,149 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:19:13,150 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:19:13,154 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:19:13,155 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:19:13,164 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:19:13,165 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:19:13,165 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:19:13,167 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:19:13,168 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:19:13,170 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:19:13,170 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:19:13,171 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:19:13,173 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:19:13,175 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:19:13,176 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:19:13,177 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:19:13,177 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:19:13,178 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:19:13,178 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:19:13,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:19:13,179 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:19:13,180 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b9e90-0d55-48e2-8502-9f07cb372389/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 22:19:13,229 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:19:13,230 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:19:13,231 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:19:13,232 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:19:13,232 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:19:13,232 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:19:13,232 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:19:13,233 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:19:13,239 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:19:13,239 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:19:13,240 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:19:13,241 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:19:13,241 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:19:13,241 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:19:13,242 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:19:13,242 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:19:13,243 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:19:13,243 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:19:13,243 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:19:13,243 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:19:13,244 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:19:13,244 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:19:13,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:19:13,244 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:19:13,245 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:19:13,245 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:19:13,245 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:19:13,245 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:19:13,246 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:19:13,247 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:19:13,248 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:19:13,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:19:13,248 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:19:13,249 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:19:13,249 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:19:13,249 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:19:13,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:19:13,250 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:19:13,250 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:19:13,250 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:19:13,250 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_a86b9e90-0d55-48e2-8502-9f07cb372389/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b9e90-0d55-48e2-8502-9f07cb372389/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 672ab63d50f6d257836fb16bc257f69b3b166ee79333dc7cfe86a969c93c0f7f [2021-11-12 22:19:13,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:19:13,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:19:13,599 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:19:13,600 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:19:13,603 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:19:13,604 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b9e90-0d55-48e2-8502-9f07cb372389/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/weaver/chl-sre-trans.wvr.c [2021-11-12 22:19:13,680 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b9e90-0d55-48e2-8502-9f07cb372389/bin/utaipan-vmNK8stdcF/data/701929add/e71a010d2fc0489a9e10ae87335616e8/FLAGdb81fb335 [2021-11-12 22:19:14,089 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:19:14,089 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b9e90-0d55-48e2-8502-9f07cb372389/sv-benchmarks/c/weaver/chl-sre-trans.wvr.c [2021-11-12 22:19:14,096 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b9e90-0d55-48e2-8502-9f07cb372389/bin/utaipan-vmNK8stdcF/data/701929add/e71a010d2fc0489a9e10ae87335616e8/FLAGdb81fb335 [2021-11-12 22:19:14,484 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b9e90-0d55-48e2-8502-9f07cb372389/bin/utaipan-vmNK8stdcF/data/701929add/e71a010d2fc0489a9e10ae87335616e8 [2021-11-12 22:19:14,487 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:19:14,488 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:19:14,490 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:19:14,490 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:19:14,493 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:19:14,494 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:19:14" (1/1) ... [2021-11-12 22:19:14,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@376b4533 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:19:14, skipping insertion in model container [2021-11-12 22:19:14,496 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:19:14" (1/1) ... [2021-11-12 22:19:14,503 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:19:14,521 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:19:14,732 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_a86b9e90-0d55-48e2-8502-9f07cb372389/sv-benchmarks/c/weaver/chl-sre-trans.wvr.c[2272,2285] [2021-11-12 22:19:14,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:19:14,744 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:19:14,767 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_a86b9e90-0d55-48e2-8502-9f07cb372389/sv-benchmarks/c/weaver/chl-sre-trans.wvr.c[2272,2285] [2021-11-12 22:19:14,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:19:14,782 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:19:14,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:19:14 WrapperNode [2021-11-12 22:19:14,782 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:19:14,783 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:19:14,784 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:19:14,784 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:19:14,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:19:14" (1/1) ... [2021-11-12 22:19:14,799 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:19:14" (1/1) ... [2021-11-12 22:19:14,819 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:19:14,820 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:19:14,820 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:19:14,820 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:19:14,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:19:14" (1/1) ... [2021-11-12 22:19:14,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:19:14" (1/1) ... [2021-11-12 22:19:14,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:19:14" (1/1) ... [2021-11-12 22:19:14,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:19:14" (1/1) ... [2021-11-12 22:19:14,837 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:19:14" (1/1) ... [2021-11-12 22:19:14,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:19:14" (1/1) ... [2021-11-12 22:19:14,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:19:14" (1/1) ... [2021-11-12 22:19:14,843 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:19:14,844 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:19:14,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:19:14,845 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:19:14,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:19:14" (1/1) ... [2021-11-12 22:19:14,853 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:19:14,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b9e90-0d55-48e2-8502-9f07cb372389/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:19:14,876 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b9e90-0d55-48e2-8502-9f07cb372389/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:19:14,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b9e90-0d55-48e2-8502-9f07cb372389/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:19:14,911 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-12 22:19:14,911 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-12 22:19:14,912 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-12 22:19:14,912 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-12 22:19:14,912 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-12 22:19:14,912 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-12 22:19:14,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-12 22:19:14,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:19:14,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-12 22:19:14,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:19:14,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:19:14,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-12 22:19:14,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:19:14,916 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-12 22:19:15,209 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:19:15,209 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 22:19:15,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:19:15 BoogieIcfgContainer [2021-11-12 22:19:15,212 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:19:15,214 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:19:15,214 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:19:15,218 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:19:15,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:19:14" (1/3) ... [2021-11-12 22:19:15,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2773164d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:19:15, skipping insertion in model container [2021-11-12 22:19:15,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:19:14" (2/3) ... [2021-11-12 22:19:15,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2773164d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:19:15, skipping insertion in model container [2021-11-12 22:19:15,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:19:15" (3/3) ... [2021-11-12 22:19:15,221 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-sre-trans.wvr.c [2021-11-12 22:19:15,226 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-12 22:19:15,227 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:19:15,227 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 22:19:15,227 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-12 22:19:15,268 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,269 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,269 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,281 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,281 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,281 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,282 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,282 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,282 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,282 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,282 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,283 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,283 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,283 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,283 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,283 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,284 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,284 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,284 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,284 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,286 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,286 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,287 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,287 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,287 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,288 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,288 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,288 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,288 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,289 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,289 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,289 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,289 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,289 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,290 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,290 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,290 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,290 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,291 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,306 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,308 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,309 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,309 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,310 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,310 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,310 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,311 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,311 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,311 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,312 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,312 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,312 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,312 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,313 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,313 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,313 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,313 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,314 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,315 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,315 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,318 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,319 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,319 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,319 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,322 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,338 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,339 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,339 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,341 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,341 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,341 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,341 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 22:19:15,347 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-11-12 22:19:15,431 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:19:15,448 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 22:19:15,450 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-12 22:19:15,481 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-12 22:19:15,499 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 116 transitions, 256 flow [2021-11-12 22:19:15,503 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 116 transitions, 256 flow [2021-11-12 22:19:15,506 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 119 places, 116 transitions, 256 flow [2021-11-12 22:19:15,614 INFO L129 PetriNetUnfolder]: 7/113 cut-off events. [2021-11-12 22:19:15,617 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-11-12 22:19:15,622 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 113 events. 7/113 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 114 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2021-11-12 22:19:15,627 INFO L116 LiptonReduction]: Number of co-enabled transitions 1950 [2021-11-12 22:19:19,889 INFO L131 LiptonReduction]: Checked pairs total: 2144 [2021-11-12 22:19:19,889 INFO L133 LiptonReduction]: Total number of compositions: 117 [2021-11-12 22:19:19,897 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 64 flow [2021-11-12 22:19:19,917 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 44 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 43 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:19:19,919 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 43 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:19:19,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-12 22:19:19,935 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:19:19,936 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:19:19,937 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:19:19,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:19:19,943 INFO L85 PathProgramCache]: Analyzing trace with hash -578886258, now seen corresponding path program 1 times [2021-11-12 22:19:19,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:19:19,954 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303836484] [2021-11-12 22:19:19,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:19:19,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:19:20,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:19:20,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:19:20,528 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:19:20,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303836484] [2021-11-12 22:19:20,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303836484] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:19:20,530 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:19:20,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-12 22:19:20,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510104828] [2021-11-12 22:19:20,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:19:20,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:19:20,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:19:20,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:19:20,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:19:20,570 INFO L87 Difference]: Start difference. First operand has 44 states, 43 states have (on average 1.8604651162790697) internal successors, (80), 43 states have internal predecessors, (80), 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 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:19:20,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:19:20,743 INFO L93 Difference]: Finished difference Result 57 states and 96 transitions. [2021-11-12 22:19:20,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:19:20,745 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2021-11-12 22:19:20,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:19:20,754 INFO L225 Difference]: With dead ends: 57 [2021-11-12 22:19:20,754 INFO L226 Difference]: Without dead ends: 42 [2021-11-12 22:19:20,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:19:20,759 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 34 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.43ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.88ms IncrementalHoareTripleChecker+Time [2021-11-12 22:19:20,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 0 Invalid, 42 Unknown, 0 Unchecked, 1.43ms Time], IncrementalHoareTripleChecker [9 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 56.88ms Time] [2021-11-12 22:19:20,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-11-12 22:19:20,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 36. [2021-11-12 22:19:20,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 35 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:19:20,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 57 transitions. [2021-11-12 22:19:20,802 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 57 transitions. Word has length 16 [2021-11-12 22:19:20,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:19:20,803 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 57 transitions. [2021-11-12 22:19:20,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:19:20,804 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 57 transitions. [2021-11-12 22:19:20,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-12 22:19:20,806 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:19:20,807 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:19:20,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-12 22:19:20,808 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:19:20,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:19:20,810 INFO L85 PathProgramCache]: Analyzing trace with hash 566756398, now seen corresponding path program 2 times [2021-11-12 22:19:20,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:19:20,814 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038291245] [2021-11-12 22:19:20,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:19:20,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:19:20,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:19:21,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:19:21,071 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:19:21,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038291245] [2021-11-12 22:19:21,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038291245] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:19:21,071 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:19:21,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-12 22:19:21,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913492939] [2021-11-12 22:19:21,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:19:21,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:19:21,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:19:21,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:19:21,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:19:21,075 INFO L87 Difference]: Start difference. First operand 36 states and 57 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:19:21,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:19:21,238 INFO L93 Difference]: Finished difference Result 47 states and 70 transitions. [2021-11-12 22:19:21,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:19:21,239 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2021-11-12 22:19:21,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:19:21,240 INFO L225 Difference]: With dead ends: 47 [2021-11-12 22:19:21,240 INFO L226 Difference]: Without dead ends: 28 [2021-11-12 22:19:21,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:19:21,242 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 25 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 77.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.87ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 103.12ms IncrementalHoareTripleChecker+Time [2021-11-12 22:19:21,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 0 Invalid, 80 Unknown, 0 Unchecked, 1.87ms Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 103.12ms Time] [2021-11-12 22:19:21,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-11-12 22:19:21,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-11-12 22:19:21,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.4814814814814814) internal successors, (40), 27 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:19:21,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 40 transitions. [2021-11-12 22:19:21,247 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 40 transitions. Word has length 16 [2021-11-12 22:19:21,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:19:21,247 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 40 transitions. [2021-11-12 22:19:21,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:19:21,248 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 40 transitions. [2021-11-12 22:19:21,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-12 22:19:21,248 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:19:21,248 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:19:21,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-12 22:19:21,249 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:19:21,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:19:21,249 INFO L85 PathProgramCache]: Analyzing trace with hash -2034185864, now seen corresponding path program 3 times [2021-11-12 22:19:21,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:19:21,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059993042] [2021-11-12 22:19:21,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:19:21,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:19:21,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:19:21,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:19:21,509 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:19:21,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059993042] [2021-11-12 22:19:21,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059993042] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:19:21,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:19:21,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-12 22:19:21,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310022298] [2021-11-12 22:19:21,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:19:21,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:19:21,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:19:21,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:19:21,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:19:21,515 INFO L87 Difference]: Start difference. First operand 28 states and 40 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:19:21,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:19:21,704 INFO L93 Difference]: Finished difference Result 37 states and 49 transitions. [2021-11-12 22:19:21,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:19:21,705 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2021-11-12 22:19:21,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:19:21,705 INFO L225 Difference]: With dead ends: 37 [2021-11-12 22:19:21,706 INFO L226 Difference]: Without dead ends: 24 [2021-11-12 22:19:21,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:19:21,707 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 36 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.85ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 74.61ms IncrementalHoareTripleChecker+Time [2021-11-12 22:19:21,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 0 Invalid, 44 Unknown, 0 Unchecked, 0.85ms Time], IncrementalHoareTripleChecker [4 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 74.61ms Time] [2021-11-12 22:19:21,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-11-12 22:19:21,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-11-12 22:19:21,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 23 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:19:21,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2021-11-12 22:19:21,712 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 31 transitions. Word has length 16 [2021-11-12 22:19:21,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:19:21,712 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 31 transitions. [2021-11-12 22:19:21,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:19:21,713 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2021-11-12 22:19:21,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-12 22:19:21,713 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:19:21,713 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:19:21,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-12 22:19:21,714 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:19:21,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:19:21,714 INFO L85 PathProgramCache]: Analyzing trace with hash -879001896, now seen corresponding path program 4 times [2021-11-12 22:19:21,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:19:21,715 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158712125] [2021-11-12 22:19:21,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:19:21,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:19:21,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:19:21,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:19:21,825 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:19:21,825 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158712125] [2021-11-12 22:19:21,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158712125] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:19:21,826 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:19:21,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-12 22:19:21,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141549502] [2021-11-12 22:19:21,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:19:21,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:19:21,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:19:21,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:19:21,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:19:21,828 INFO L87 Difference]: Start difference. First operand 24 states and 31 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:19:21,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:19:21,995 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2021-11-12 22:19:21,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 22:19:21,996 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2021-11-12 22:19:21,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:19:21,996 INFO L225 Difference]: With dead ends: 31 [2021-11-12 22:19:21,997 INFO L226 Difference]: Without dead ends: 22 [2021-11-12 22:19:21,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:19:21,998 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 37 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.02ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.35ms IncrementalHoareTripleChecker+Time [2021-11-12 22:19:21,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 0 Invalid, 49 Unknown, 0 Unchecked, 1.02ms Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 65.35ms Time] [2021-11-12 22:19:21,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-11-12 22:19:22,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-11-12 22:19:22,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 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) [2021-11-12 22:19:22,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2021-11-12 22:19:22,002 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 16 [2021-11-12 22:19:22,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:19:22,002 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2021-11-12 22:19:22,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:19:22,003 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2021-11-12 22:19:22,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-12 22:19:22,003 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:19:22,003 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:19:22,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-12 22:19:22,004 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 22:19:22,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:19:22,004 INFO L85 PathProgramCache]: Analyzing trace with hash 868479464, now seen corresponding path program 5 times [2021-11-12 22:19:22,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:19:22,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442995384] [2021-11-12 22:19:22,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:19:22,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:19:22,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:19:22,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:19:22,126 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:19:22,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442995384] [2021-11-12 22:19:22,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442995384] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:19:22,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:19:22,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-12 22:19:22,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525763754] [2021-11-12 22:19:22,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:19:22,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:19:22,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:19:22,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:19:22,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:19:22,128 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:19:22,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:19:22,184 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2021-11-12 22:19:22,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:19:22,187 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2021-11-12 22:19:22,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:19:22,187 INFO L225 Difference]: With dead ends: 21 [2021-11-12 22:19:22,187 INFO L226 Difference]: Without dead ends: 0 [2021-11-12 22:19:22,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-12 22:19:22,189 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 21 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.62ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.40ms IncrementalHoareTripleChecker+Time [2021-11-12 22:19:22,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 0 Invalid, 23 Unknown, 0 Unchecked, 0.62ms Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 37.40ms Time] [2021-11-12 22:19:22,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-12 22:19:22,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-12 22:19:22,190 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) [2021-11-12 22:19:22,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-12 22:19:22,190 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2021-11-12 22:19:22,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:19:22,191 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-12 22:19:22,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 22:19:22,191 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-12 22:19:22,191 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-12 22:19:22,194 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2021-11-12 22:19:22,194 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2021-11-12 22:19:22,194 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2021-11-12 22:19:22,194 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2021-11-12 22:19:22,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-12 22:19:22,197 INFO L732 BasicCegarLoop]: Path program histogram: [5] [2021-11-12 22:19:22,199 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-12 22:19:22,199 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 22:19:22,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 10:19:22 BasicIcfg [2021-11-12 22:19:22,202 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-12 22:19:22,203 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-12 22:19:22,203 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-12 22:19:22,203 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-12 22:19:22,204 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:19:15" (3/4) ... [2021-11-12 22:19:22,206 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-12 22:19:22,213 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-11-12 22:19:22,213 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-11-12 22:19:22,213 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-11-12 22:19:22,218 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2021-11-12 22:19:22,218 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-12 22:19:22,218 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-12 22:19:22,219 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-12 22:19:22,253 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b9e90-0d55-48e2-8502-9f07cb372389/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-12 22:19:22,254 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-12 22:19:22,254 INFO L158 Benchmark]: Toolchain (without parser) took 7765.94ms. Allocated memory was 81.8MB in the beginning and 151.0MB in the end (delta: 69.2MB). Free memory was 43.5MB in the beginning and 99.8MB in the end (delta: -56.2MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2021-11-12 22:19:22,255 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 81.8MB. Free memory was 59.8MB in the beginning and 59.7MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:19:22,255 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.65ms. Allocated memory was 81.8MB in the beginning and 117.4MB in the end (delta: 35.7MB). Free memory was 43.4MB in the beginning and 92.4MB in the end (delta: -49.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 22:19:22,256 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.83ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 90.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 22:19:22,256 INFO L158 Benchmark]: Boogie Preprocessor took 23.82ms. Allocated memory is still 117.4MB. Free memory was 90.3MB in the beginning and 89.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:19:22,256 INFO L158 Benchmark]: RCFGBuilder took 367.53ms. Allocated memory is still 117.4MB. Free memory was 89.1MB in the beginning and 76.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-12 22:19:22,257 INFO L158 Benchmark]: TraceAbstraction took 6988.58ms. Allocated memory was 117.4MB in the beginning and 151.0MB in the end (delta: 33.6MB). Free memory was 76.2MB in the beginning and 102.9MB in the end (delta: -26.7MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2021-11-12 22:19:22,257 INFO L158 Benchmark]: Witness Printer took 50.84ms. Allocated memory is still 151.0MB. Free memory was 102.9MB in the beginning and 99.8MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 22:19:22,259 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 81.8MB. Free memory was 59.8MB in the beginning and 59.7MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 292.65ms. Allocated memory was 81.8MB in the beginning and 117.4MB in the end (delta: 35.7MB). Free memory was 43.4MB in the beginning and 92.4MB in the end (delta: -49.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.83ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 90.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.82ms. Allocated memory is still 117.4MB. Free memory was 90.3MB in the beginning and 89.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 367.53ms. Allocated memory is still 117.4MB. Free memory was 89.1MB in the beginning and 76.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 6988.58ms. Allocated memory was 117.4MB in the beginning and 151.0MB in the end (delta: 33.6MB). Free memory was 76.2MB in the beginning and 102.9MB in the end (delta: -26.7MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. * Witness Printer took 50.84ms. Allocated memory is still 151.0MB. Free memory was 102.9MB in the beginning and 99.8MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.4s, 119 PlacesBefore, 30 PlacesAfterwards, 116 TransitionsBefore, 20 TransitionsAfterwards, 1950 CoEnabledTransitionPairs, 7 FixpointIterations, 49 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 19 ConcurrentYvCompositions, 7 ChoiceCompositions, 117 TotalNumberOfCompositions, 2144 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2144, positive: 2144, positive conditional: 0, positive unconditional: 2144, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1616, positive: 1616, positive conditional: 0, positive unconditional: 1616, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1616, positive: 1616, positive conditional: 0, positive unconditional: 1616, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2144, positive: 528, positive conditional: 0, positive unconditional: 528, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1616, unknown conditional: 0, unknown unconditional: 1616] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - 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: 76]: 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, 149 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 6.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.5s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 153 SdHoareTripleChecker+Valid, 337.36ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 153 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 259.96ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 83 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 220 IncrementalHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 0 mSDtfsCounter, 220 mSolverCounterSat, 5.79ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 1146 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-12 22:19:22,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a86b9e90-0d55-48e2-8502-9f07cb372389/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE