./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/spaghetti.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff96ac7b-fabf-4216-aa5a-10e30a93a5c8/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff96ac7b-fabf-4216-aa5a-10e30a93a5c8/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff96ac7b-fabf-4216-aa5a-10e30a93a5c8/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff96ac7b-fabf-4216-aa5a-10e30a93a5c8/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/spaghetti.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff96ac7b-fabf-4216-aa5a-10e30a93a5c8/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff96ac7b-fabf-4216-aa5a-10e30a93a5c8/bin/uautomizer-AkOaLMaTGY --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7e50ae1d6af13c623583d6a2f949e9597ecd4d402771d52399b9fc659c58a3d1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 08:04:41,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 08:04:41,976 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 08:04:42,050 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 08:04:42,051 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 08:04:42,058 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 08:04:42,060 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 08:04:42,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 08:04:42,067 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 08:04:42,075 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 08:04:42,076 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 08:04:42,078 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 08:04:42,079 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 08:04:42,082 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 08:04:42,084 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 08:04:42,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 08:04:42,092 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 08:04:42,093 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 08:04:42,096 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 08:04:42,107 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 08:04:42,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 08:04:42,111 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 08:04:42,114 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 08:04:42,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 08:04:42,120 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 08:04:42,120 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 08:04:42,121 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 08:04:42,123 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 08:04:42,124 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 08:04:42,126 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 08:04:42,126 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 08:04:42,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 08:04:42,129 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 08:04:42,131 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 08:04:42,133 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 08:04:42,133 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 08:04:42,134 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 08:04:42,135 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 08:04:42,135 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 08:04:42,136 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 08:04:42,137 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 08:04:42,138 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff96ac7b-fabf-4216-aa5a-10e30a93a5c8/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-07 08:04:42,187 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 08:04:42,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 08:04:42,189 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 08:04:42,189 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 08:04:42,197 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 08:04:42,197 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 08:04:42,197 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 08:04:42,198 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 08:04:42,198 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 08:04:42,198 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 08:04:42,199 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 08:04:42,200 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 08:04:42,200 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 08:04:42,200 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 08:04:42,201 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 08:04:42,201 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 08:04:42,201 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 08:04:42,201 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 08:04:42,201 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 08:04:42,202 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 08:04:42,202 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 08:04:42,202 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 08:04:42,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:04:42,203 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 08:04:42,203 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 08:04:42,203 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 08:04:42,204 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 08:04:42,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 08:04:42,204 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 08:04:42,204 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 08:04:42,205 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 08:04:42,205 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 08:04:42,205 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_ff96ac7b-fabf-4216-aa5a-10e30a93a5c8/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff96ac7b-fabf-4216-aa5a-10e30a93a5c8/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e50ae1d6af13c623583d6a2f949e9597ecd4d402771d52399b9fc659c58a3d1 [2021-11-07 08:04:42,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 08:04:42,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 08:04:42,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 08:04:42,575 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 08:04:42,576 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 08:04:42,577 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff96ac7b-fabf-4216-aa5a-10e30a93a5c8/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/weaver/spaghetti.wvr.c [2021-11-07 08:04:42,654 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff96ac7b-fabf-4216-aa5a-10e30a93a5c8/bin/uautomizer-AkOaLMaTGY/data/f203b989b/286642b863464d6baee50cc8c469c34a/FLAG1ae531bc4 [2021-11-07 08:04:43,234 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 08:04:43,236 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff96ac7b-fabf-4216-aa5a-10e30a93a5c8/sv-benchmarks/c/weaver/spaghetti.wvr.c [2021-11-07 08:04:43,249 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff96ac7b-fabf-4216-aa5a-10e30a93a5c8/bin/uautomizer-AkOaLMaTGY/data/f203b989b/286642b863464d6baee50cc8c469c34a/FLAG1ae531bc4 [2021-11-07 08:04:43,570 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff96ac7b-fabf-4216-aa5a-10e30a93a5c8/bin/uautomizer-AkOaLMaTGY/data/f203b989b/286642b863464d6baee50cc8c469c34a [2021-11-07 08:04:43,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 08:04:43,574 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 08:04:43,575 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 08:04:43,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 08:04:43,579 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 08:04:43,580 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:04:43" (1/1) ... [2021-11-07 08:04:43,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73e81cd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:04:43, skipping insertion in model container [2021-11-07 08:04:43,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:04:43" (1/1) ... [2021-11-07 08:04:43,589 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 08:04:43,614 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 08:04:43,884 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_ff96ac7b-fabf-4216-aa5a-10e30a93a5c8/sv-benchmarks/c/weaver/spaghetti.wvr.c[3221,3234] [2021-11-07 08:04:43,890 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:04:43,904 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 08:04:43,929 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_ff96ac7b-fabf-4216-aa5a-10e30a93a5c8/sv-benchmarks/c/weaver/spaghetti.wvr.c[3221,3234] [2021-11-07 08:04:43,930 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:04:43,944 INFO L208 MainTranslator]: Completed translation [2021-11-07 08:04:43,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:04:43 WrapperNode [2021-11-07 08:04:43,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 08:04:43,946 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 08:04:43,946 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 08:04:43,947 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 08:04:43,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:04:43" (1/1) ... [2021-11-07 08:04:43,962 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:04:43" (1/1) ... [2021-11-07 08:04:43,983 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 08:04:43,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 08:04:43,985 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 08:04:43,985 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 08:04:43,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:04:43" (1/1) ... [2021-11-07 08:04:43,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:04:43" (1/1) ... [2021-11-07 08:04:43,997 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:04:43" (1/1) ... [2021-11-07 08:04:43,997 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:04:43" (1/1) ... [2021-11-07 08:04:44,004 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:04:43" (1/1) ... [2021-11-07 08:04:44,008 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:04:43" (1/1) ... [2021-11-07 08:04:44,010 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:04:43" (1/1) ... [2021-11-07 08:04:44,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 08:04:44,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 08:04:44,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 08:04:44,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 08:04:44,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:04:43" (1/1) ... [2021-11-07 08:04:44,023 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:04:44,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff96ac7b-fabf-4216-aa5a-10e30a93a5c8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:04:44,057 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff96ac7b-fabf-4216-aa5a-10e30a93a5c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 08:04:44,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff96ac7b-fabf-4216-aa5a-10e30a93a5c8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 08:04:44,110 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-07 08:04:44,110 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-07 08:04:44,110 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-07 08:04:44,111 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-07 08:04:44,111 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-07 08:04:44,111 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-07 08:04:44,111 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-11-07 08:04:44,112 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-11-07 08:04:44,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 08:04:44,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 08:04:44,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 08:04:44,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-07 08:04:44,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-07 08:04:44,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 08:04:44,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 08:04:44,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 08:04:44,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 08:04:44,116 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-07 08:04:44,548 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 08:04:44,549 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-11-07 08:04:44,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:04:44 BoogieIcfgContainer [2021-11-07 08:04:44,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 08:04:44,553 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 08:04:44,554 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 08:04:44,557 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 08:04:44,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:04:43" (1/3) ... [2021-11-07 08:04:44,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@176bab2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:04:44, skipping insertion in model container [2021-11-07 08:04:44,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:04:43" (2/3) ... [2021-11-07 08:04:44,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@176bab2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:04:44, skipping insertion in model container [2021-11-07 08:04:44,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:04:44" (3/3) ... [2021-11-07 08:04:44,561 INFO L111 eAbstractionObserver]: Analyzing ICFG spaghetti.wvr.c [2021-11-07 08:04:44,566 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-07 08:04:44,567 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 08:04:44,567 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 08:04:44,567 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-07 08:04:44,625 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,625 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,625 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,626 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,626 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,626 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,626 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,626 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,627 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,627 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,627 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,627 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,627 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,628 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,628 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,628 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,629 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,629 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,629 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,630 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,630 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,630 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,631 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,631 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,631 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,631 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,631 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,632 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,632 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,633 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,633 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,633 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,633 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,634 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,634 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,634 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,634 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,635 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,635 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,635 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,635 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,636 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,636 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,636 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,637 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,637 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,637 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,638 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,638 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,638 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,638 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,639 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,639 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,639 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,639 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,640 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,643 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,643 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,643 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,644 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,646 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,646 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,646 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,649 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,649 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,649 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,651 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,652 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,652 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,652 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-07 08:04:44,665 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-11-07 08:04:44,714 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 08:04:44,721 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=PETRI_NET, 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 [2021-11-07 08:04:44,722 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-11-07 08:04:44,743 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 124 places, 120 transitions, 272 flow [2021-11-07 08:04:44,869 INFO L129 PetriNetUnfolder]: 9/116 cut-off events. [2021-11-07 08:04:44,872 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-11-07 08:04:44,880 INFO L84 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 116 events. 9/116 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 109 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 78. Up to 2 conditions per place. [2021-11-07 08:04:44,883 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 120 transitions, 272 flow [2021-11-07 08:04:44,892 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 108 places, 104 transitions, 232 flow [2021-11-07 08:04:44,922 INFO L129 PetriNetUnfolder]: 9/103 cut-off events. [2021-11-07 08:04:44,922 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-11-07 08:04:44,922 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 08:04:44,923 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:04:44,924 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-07 08:04:44,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:04:44,930 INFO L85 PathProgramCache]: Analyzing trace with hash -469591272, now seen corresponding path program 1 times [2021-11-07 08:04:44,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:04:44,940 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164268708] [2021-11-07 08:04:44,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:04:44,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:04:45,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:04:45,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:04:45,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:04:45,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164268708] [2021-11-07 08:04:45,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164268708] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:04:45,268 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:04:45,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:04:45,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572075439] [2021-11-07 08:04:45,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 08:04:45,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:04:45,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 08:04:45,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 08:04:45,297 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 120 [2021-11-07 08:04:45,302 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 104 transitions, 232 flow. Second operand has 2 states, 2 states have (on average 116.0) internal successors, (232), 2 states have internal predecessors, (232), 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) [2021-11-07 08:04:45,302 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 08:04:45,302 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 120 [2021-11-07 08:04:45,303 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 08:04:45,333 INFO L129 PetriNetUnfolder]: 4/99 cut-off events. [2021-11-07 08:04:45,333 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-11-07 08:04:45,335 INFO L84 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 99 events. 4/99 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 94 event pairs, 0 based on Foata normal form. 5/99 useless extension candidates. Maximal degree in co-relation 111. Up to 2 conditions per place. [2021-11-07 08:04:45,336 INFO L132 encePairwiseOnDemand]: 115/120 looper letters, 0 selfloop transitions, 0 changer transitions 1/99 dead transitions. [2021-11-07 08:04:45,336 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 99 transitions, 222 flow [2021-11-07 08:04:45,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 08:04:45,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-11-07 08:04:45,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 233 transitions. [2021-11-07 08:04:45,350 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9708333333333333 [2021-11-07 08:04:45,351 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 233 transitions. [2021-11-07 08:04:45,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 233 transitions. [2021-11-07 08:04:45,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:04:45,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 233 transitions. [2021-11-07 08:04:45,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 116.5) internal successors, (233), 2 states have internal predecessors, (233), 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) [2021-11-07 08:04:45,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 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) [2021-11-07 08:04:45,365 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 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) [2021-11-07 08:04:45,367 INFO L186 Difference]: Start difference. First operand has 108 places, 104 transitions, 232 flow. Second operand 2 states and 233 transitions. [2021-11-07 08:04:45,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 99 transitions, 222 flow [2021-11-07 08:04:45,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 99 transitions, 206 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-11-07 08:04:45,377 INFO L242 Difference]: Finished difference. Result has 101 places, 98 transitions, 204 flow [2021-11-07 08:04:45,379 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=204, PETRI_PLACES=101, PETRI_TRANSITIONS=98} [2021-11-07 08:04:45,380 INFO L334 CegarLoopForPetriNet]: 108 programPoint places, -7 predicate places. [2021-11-07 08:04:45,380 INFO L470 AbstractCegarLoop]: Abstraction has has 101 places, 98 transitions, 204 flow [2021-11-07 08:04:45,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 116.0) internal successors, (232), 2 states have internal predecessors, (232), 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) [2021-11-07 08:04:45,381 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 08:04:45,381 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:04:45,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 08:04:45,382 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-07 08:04:45,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:04:45,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1731263008, now seen corresponding path program 1 times [2021-11-07 08:04:45,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:04:45,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958128497] [2021-11-07 08:04:45,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:04:45,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:04:45,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:04:45,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:04:45,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:04:45,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958128497] [2021-11-07 08:04:45,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958128497] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:04:45,832 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:04:45,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 08:04:45,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821165290] [2021-11-07 08:04:45,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 08:04:45,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:04:45,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 08:04:45,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-07 08:04:45,839 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 120 [2021-11-07 08:04:45,841 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 98 transitions, 204 flow. Second operand has 6 states, 6 states have (on average 93.0) internal successors, (558), 6 states have internal predecessors, (558), 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) [2021-11-07 08:04:45,841 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 08:04:45,841 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 120 [2021-11-07 08:04:45,841 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 08:04:46,122 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([313] L97-->L99: Formula: (= v_~x_1~0_10 (* v_~x_1~0_11 10)) InVars {~x_1~0=v_~x_1~0_11} OutVars{~x_1~0=v_~x_1~0_10} AuxVars[] AssignedVars[~x_1~0][93], [51#L55true, 26#L120-4true, 132#(= ~x_0~0 0), 29#L67true, 3#L99true, 127#true, 89#L86true]) [2021-11-07 08:04:46,122 INFO L384 tUnfolder$Statistics]: this new event has 51 ancestors and is cut-off event [2021-11-07 08:04:46,124 INFO L387 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2021-11-07 08:04:46,124 INFO L387 tUnfolder$Statistics]: existing Event has 52 ancestors and is cut-off event [2021-11-07 08:04:46,125 INFO L387 tUnfolder$Statistics]: existing Event has 51 ancestors and is cut-off event [2021-11-07 08:04:46,125 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([309] L96-3-->L106: Formula: (= v_~x_1~0_14 0) InVars {} OutVars{~x_1~0=v_~x_1~0_14} AuxVars[] AssignedVars[~x_1~0][96], [51#L55true, 26#L120-4true, 29#L67true, 6#L106true, 133#(and (= ~x_0~0 0) (= ~x_1~0 0)), 127#true, 89#L86true]) [2021-11-07 08:04:46,125 INFO L384 tUnfolder$Statistics]: this new event has 51 ancestors and is cut-off event [2021-11-07 08:04:46,126 INFO L387 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2021-11-07 08:04:46,126 INFO L387 tUnfolder$Statistics]: existing Event has 52 ancestors and is cut-off event [2021-11-07 08:04:46,126 INFO L387 tUnfolder$Statistics]: existing Event has 51 ancestors and is cut-off event [2021-11-07 08:04:46,133 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([313] L97-->L99: Formula: (= v_~x_1~0_10 (* v_~x_1~0_11 10)) InVars {~x_1~0=v_~x_1~0_11} OutVars{~x_1~0=v_~x_1~0_10} AuxVars[] AssignedVars[~x_1~0][92], [130#true, 26#L120-4true, 29#L67true, 3#L99true, 53#L45true, 127#true, 89#L86true]) [2021-11-07 08:04:46,134 INFO L384 tUnfolder$Statistics]: this new event has 51 ancestors and is cut-off event [2021-11-07 08:04:46,134 INFO L387 tUnfolder$Statistics]: existing Event has 51 ancestors and is cut-off event [2021-11-07 08:04:46,134 INFO L387 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2021-11-07 08:04:46,134 INFO L387 tUnfolder$Statistics]: existing Event has 52 ancestors and is cut-off event [2021-11-07 08:04:46,135 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([309] L96-3-->L106: Formula: (= v_~x_1~0_14 0) InVars {} OutVars{~x_1~0=v_~x_1~0_14} AuxVars[] AssignedVars[~x_1~0][95], [130#true, 26#L120-4true, 29#L67true, 6#L106true, 53#L45true, 127#true, 89#L86true]) [2021-11-07 08:04:46,135 INFO L384 tUnfolder$Statistics]: this new event has 51 ancestors and is cut-off event [2021-11-07 08:04:46,135 INFO L387 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2021-11-07 08:04:46,135 INFO L387 tUnfolder$Statistics]: existing Event has 52 ancestors and is cut-off event [2021-11-07 08:04:46,135 INFO L387 tUnfolder$Statistics]: existing Event has 51 ancestors and is cut-off event [2021-11-07 08:04:46,160 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([313] L97-->L99: Formula: (= v_~x_1~0_10 (* v_~x_1~0_11 10)) InVars {~x_1~0=v_~x_1~0_11} OutVars{~x_1~0=v_~x_1~0_10} AuxVars[] AssignedVars[~x_1~0][92], [130#true, 115#L48true, 26#L120-4true, 29#L67true, 3#L99true, 127#true, 89#L86true]) [2021-11-07 08:04:46,160 INFO L384 tUnfolder$Statistics]: this new event has 52 ancestors and is cut-off event [2021-11-07 08:04:46,161 INFO L387 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2021-11-07 08:04:46,161 INFO L387 tUnfolder$Statistics]: existing Event has 52 ancestors and is cut-off event [2021-11-07 08:04:46,161 INFO L387 tUnfolder$Statistics]: existing Event has 53 ancestors and is cut-off event [2021-11-07 08:04:46,162 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([309] L96-3-->L106: Formula: (= v_~x_1~0_14 0) InVars {} OutVars{~x_1~0=v_~x_1~0_14} AuxVars[] AssignedVars[~x_1~0][95], [130#true, 115#L48true, 26#L120-4true, 29#L67true, 6#L106true, 127#true, 89#L86true]) [2021-11-07 08:04:46,162 INFO L384 tUnfolder$Statistics]: this new event has 52 ancestors and is cut-off event [2021-11-07 08:04:46,162 INFO L387 tUnfolder$Statistics]: existing Event has 53 ancestors and is cut-off event [2021-11-07 08:04:46,163 INFO L387 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2021-11-07 08:04:46,163 INFO L387 tUnfolder$Statistics]: existing Event has 52 ancestors and is cut-off event [2021-11-07 08:04:46,371 INFO L129 PetriNetUnfolder]: 895/1931 cut-off events. [2021-11-07 08:04:46,371 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-07 08:04:46,384 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3132 conditions, 1931 events. 895/1931 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 13308 event pairs, 238 based on Foata normal form. 1/1748 useless extension candidates. Maximal degree in co-relation 3129. Up to 666 conditions per place. [2021-11-07 08:04:46,402 INFO L132 encePairwiseOnDemand]: 106/120 looper letters, 33 selfloop transitions, 13 changer transitions 7/129 dead transitions. [2021-11-07 08:04:46,402 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 129 transitions, 372 flow [2021-11-07 08:04:46,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 08:04:46,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-07 08:04:46,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 600 transitions. [2021-11-07 08:04:46,412 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2021-11-07 08:04:46,412 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 600 transitions. [2021-11-07 08:04:46,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 600 transitions. [2021-11-07 08:04:46,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:04:46,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 600 transitions. [2021-11-07 08:04:46,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 100.0) internal successors, (600), 6 states have internal predecessors, (600), 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) [2021-11-07 08:04:46,423 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 120.0) internal successors, (840), 7 states have internal predecessors, (840), 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) [2021-11-07 08:04:46,425 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 120.0) internal successors, (840), 7 states have internal predecessors, (840), 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) [2021-11-07 08:04:46,425 INFO L186 Difference]: Start difference. First operand has 101 places, 98 transitions, 204 flow. Second operand 6 states and 600 transitions. [2021-11-07 08:04:46,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 129 transitions, 372 flow [2021-11-07 08:04:46,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 129 transitions, 372 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-07 08:04:46,433 INFO L242 Difference]: Finished difference. Result has 110 places, 108 transitions, 298 flow [2021-11-07 08:04:46,434 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=298, PETRI_PLACES=110, PETRI_TRANSITIONS=108} [2021-11-07 08:04:46,435 INFO L334 CegarLoopForPetriNet]: 108 programPoint places, 2 predicate places. [2021-11-07 08:04:46,436 INFO L470 AbstractCegarLoop]: Abstraction has has 110 places, 108 transitions, 298 flow [2021-11-07 08:04:46,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 93.0) internal successors, (558), 6 states have internal predecessors, (558), 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) [2021-11-07 08:04:46,440 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-07 08:04:46,440 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:04:46,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 08:04:46,441 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-11-07 08:04:46,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:04:46,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1207170242, now seen corresponding path program 2 times [2021-11-07 08:04:46,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:04:46,443 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783183537] [2021-11-07 08:04:46,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:04:46,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:04:46,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:04:46,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:04:46,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:04:46,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783183537] [2021-11-07 08:04:46,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783183537] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:04:46,711 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:04:46,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 08:04:46,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694364364] [2021-11-07 08:04:46,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 08:04:46,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:04:46,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 08:04:46,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-07 08:04:46,716 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 120 [2021-11-07 08:04:46,717 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 108 transitions, 298 flow. Second operand has 6 states, 6 states have (on average 93.0) internal successors, (558), 6 states have internal predecessors, (558), 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) [2021-11-07 08:04:46,728 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-07 08:04:46,728 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 120 [2021-11-07 08:04:46,728 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-07 08:04:46,950 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([313] L97-->L99: Formula: (= v_~x_1~0_10 (* v_~x_1~0_11 10)) InVars {~x_1~0=v_~x_1~0_11} OutVars{~x_1~0=v_~x_1~0_10} AuxVars[] AssignedVars[~x_1~0][96], [Black: 137#(and (= ~x_0~0 0) (= ~x_1~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)), 146#true, 51#L55true, Black: 133#(and (= ~x_0~0 0) (= ~x_1~0 0)), 26#L120-4true, 132#(= ~x_0~0 0), 29#L67true, 3#L99true, 127#true, Black: 130#true, Black: 139#(and (= ULTIMATE.start_assume_abort_if_not_~cond 0) (= ~x_0~0 0) (= ~x_1~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)), 89#L86true]) [2021-11-07 08:04:46,950 INFO L384 tUnfolder$Statistics]: this new event has 51 ancestors and is cut-off event [2021-11-07 08:04:46,950 INFO L387 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2021-11-07 08:04:46,951 INFO L387 tUnfolder$Statistics]: existing Event has 51 ancestors and is cut-off event [2021-11-07 08:04:46,951 INFO L387 tUnfolder$Statistics]: existing Event has 52 ancestors and is cut-off event [2021-11-07 08:04:46,951 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([309] L96-3-->L106: Formula: (= v_~x_1~0_14 0) InVars {} OutVars{~x_1~0=v_~x_1~0_14} AuxVars[] AssignedVars[~x_1~0][101], [Black: 137#(and (= ~x_0~0 0) (= ~x_1~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)), 51#L55true, 26#L120-4true, 29#L67true, 6#L106true, 133#(and (= ~x_0~0 0) (= ~x_1~0 0)), 148#(= ~x_1~0 0), 127#true, Black: 130#true, Black: 139#(and (= ULTIMATE.start_assume_abort_if_not_~cond 0) (= ~x_0~0 0) (= ~x_1~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)), 89#L86true, Black: 132#(= ~x_0~0 0)]) [2021-11-07 08:04:46,951 INFO L384 tUnfolder$Statistics]: this new event has 51 ancestors and is cut-off event [2021-11-07 08:04:46,952 INFO L387 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2021-11-07 08:04:46,952 INFO L387 tUnfolder$Statistics]: existing Event has 51 ancestors and is cut-off event [2021-11-07 08:04:46,953 INFO L387 tUnfolder$Statistics]: existing Event has 52 ancestors and is cut-off event [2021-11-07 08:04:46,968 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([313] L97-->L99: Formula: (= v_~x_1~0_10 (* v_~x_1~0_11 10)) InVars {~x_1~0=v_~x_1~0_11} OutVars{~x_1~0=v_~x_1~0_10} AuxVars[] AssignedVars[~x_1~0][96], [Black: 137#(and (= ~x_0~0 0) (= ~x_1~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)), 130#true, 146#true, Black: 133#(and (= ~x_0~0 0) (= ~x_1~0 0)), 26#L120-4true, 29#L67true, 3#L99true, 53#L45true, 127#true, Black: 139#(and (= ULTIMATE.start_assume_abort_if_not_~cond 0) (= ~x_0~0 0) (= ~x_1~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)), 89#L86true, Black: 132#(= ~x_0~0 0)]) [2021-11-07 08:04:46,969 INFO L384 tUnfolder$Statistics]: this new event has 51 ancestors and is cut-off event [2021-11-07 08:04:46,969 INFO L387 tUnfolder$Statistics]: existing Event has 52 ancestors and is cut-off event [2021-11-07 08:04:46,969 INFO L387 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2021-11-07 08:04:46,969 INFO L387 tUnfolder$Statistics]: existing Event has 51 ancestors and is cut-off event [2021-11-07 08:04:46,970 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([309] L96-3-->L106: Formula: (= v_~x_1~0_14 0) InVars {} OutVars{~x_1~0=v_~x_1~0_14} AuxVars[] AssignedVars[~x_1~0][99], [Black: 137#(and (= ~x_0~0 0) (= ~x_1~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)), 130#true, Black: 133#(and (= ~x_0~0 0) (= ~x_1~0 0)), 26#L120-4true, 29#L67true, 6#L106true, 53#L45true, 148#(= ~x_1~0 0), 127#true, Black: 139#(and (= ULTIMATE.start_assume_abort_if_not_~cond 0) (= ~x_0~0 0) (= ~x_1~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)), 89#L86true, Black: 132#(= ~x_0~0 0)]) [2021-11-07 08:04:46,970 INFO L384 tUnfolder$Statistics]: this new event has 51 ancestors and is cut-off event [2021-11-07 08:04:46,970 INFO L387 tUnfolder$Statistics]: existing Event has 52 ancestors and is cut-off event [2021-11-07 08:04:46,970 INFO L387 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2021-11-07 08:04:46,970 INFO L387 tUnfolder$Statistics]: existing Event has 51 ancestors and is cut-off event [2021-11-07 08:04:47,002 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([313] L97-->L99: Formula: (= v_~x_1~0_10 (* v_~x_1~0_11 10)) InVars {~x_1~0=v_~x_1~0_11} OutVars{~x_1~0=v_~x_1~0_10} AuxVars[] AssignedVars[~x_1~0][96], [Black: 137#(and (= ~x_0~0 0) (= ~x_1~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)), 130#true, 146#true, 115#L48true, Black: 133#(and (= ~x_0~0 0) (= ~x_1~0 0)), 26#L120-4true, 29#L67true, 3#L99true, 127#true, Black: 139#(and (= ULTIMATE.start_assume_abort_if_not_~cond 0) (= ~x_0~0 0) (= ~x_1~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)), 89#L86true, Black: 132#(= ~x_0~0 0)]) [2021-11-07 08:04:47,003 INFO L384 tUnfolder$Statistics]: this new event has 52 ancestors and is cut-off event [2021-11-07 08:04:47,003 INFO L387 tUnfolder$Statistics]: existing Event has 52 ancestors and is cut-off event [2021-11-07 08:04:47,003 INFO L387 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2021-11-07 08:04:47,003 INFO L387 tUnfolder$Statistics]: existing Event has 53 ancestors and is cut-off event [2021-11-07 08:04:47,004 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([309] L96-3-->L106: Formula: (= v_~x_1~0_14 0) InVars {} OutVars{~x_1~0=v_~x_1~0_14} AuxVars[] AssignedVars[~x_1~0][99], [Black: 137#(and (= ~x_0~0 0) (= ~x_1~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)), 130#true, 115#L48true, Black: 133#(and (= ~x_0~0 0) (= ~x_1~0 0)), 26#L120-4true, 29#L67true, 6#L106true, 148#(= ~x_1~0 0), 127#true, Black: 139#(and (= ULTIMATE.start_assume_abort_if_not_~cond 0) (= ~x_0~0 0) (= ~x_1~0 0) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)), 89#L86true, Black: 132#(= ~x_0~0 0)]) [2021-11-07 08:04:47,004 INFO L384 tUnfolder$Statistics]: this new event has 52 ancestors and is cut-off event [2021-11-07 08:04:47,004 INFO L387 tUnfolder$Statistics]: existing Event has 52 ancestors and is cut-off event [2021-11-07 08:04:47,004 INFO L387 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2021-11-07 08:04:47,004 INFO L387 tUnfolder$Statistics]: existing Event has 53 ancestors and is cut-off event [2021-11-07 08:04:47,235 INFO L129 PetriNetUnfolder]: 994/2260 cut-off events. [2021-11-07 08:04:47,236 INFO L130 PetriNetUnfolder]: For 974/1929 co-relation queries the response was YES. [2021-11-07 08:04:47,249 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4688 conditions, 2260 events. 994/2260 cut-off events. For 974/1929 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 16886 event pairs, 247 based on Foata normal form. 3/2051 useless extension candidates. Maximal degree in co-relation 4680. Up to 758 conditions per place. [2021-11-07 08:04:47,253 INFO L132 encePairwiseOnDemand]: 107/120 looper letters, 0 selfloop transitions, 0 changer transitions 142/142 dead transitions. [2021-11-07 08:04:47,253 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 142 transitions, 566 flow [2021-11-07 08:04:47,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 08:04:47,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-07 08:04:47,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 596 transitions. [2021-11-07 08:04:47,256 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8277777777777777 [2021-11-07 08:04:47,256 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 596 transitions. [2021-11-07 08:04:47,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 596 transitions. [2021-11-07 08:04:47,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 08:04:47,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 596 transitions. [2021-11-07 08:04:47,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 99.33333333333333) internal successors, (596), 6 states have internal predecessors, (596), 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) [2021-11-07 08:04:47,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 120.0) internal successors, (840), 7 states have internal predecessors, (840), 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) [2021-11-07 08:04:47,264 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 120.0) internal successors, (840), 7 states have internal predecessors, (840), 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) [2021-11-07 08:04:47,265 INFO L186 Difference]: Start difference. First operand has 110 places, 108 transitions, 298 flow. Second operand 6 states and 596 transitions. [2021-11-07 08:04:47,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 142 transitions, 566 flow [2021-11-07 08:04:47,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 142 transitions, 564 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-11-07 08:04:47,274 INFO L242 Difference]: Finished difference. Result has 110 places, 0 transitions, 0 flow [2021-11-07 08:04:47,275 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=110, PETRI_TRANSITIONS=0} [2021-11-07 08:04:47,275 INFO L334 CegarLoopForPetriNet]: 108 programPoint places, 2 predicate places. [2021-11-07 08:04:47,275 INFO L470 AbstractCegarLoop]: Abstraction has has 110 places, 0 transitions, 0 flow [2021-11-07 08:04:47,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 93.0) internal successors, (558), 6 states have internal predecessors, (558), 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) [2021-11-07 08:04:47,278 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 08:04:47,279 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-07 08:04:47,279 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-11-07 08:04:47,280 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-11-07 08:04:47,280 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION [2021-11-07 08:04:47,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 08:04:47,284 INFO L731 BasicCegarLoop]: Path program histogram: [2, 1] [2021-11-07 08:04:47,286 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-07 08:04:47,287 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 08:04:47,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:04:47 BasicIcfg [2021-11-07 08:04:47,291 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 08:04:47,292 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 08:04:47,292 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 08:04:47,292 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 08:04:47,292 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:04:44" (3/4) ... [2021-11-07 08:04:47,295 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-07 08:04:47,303 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-11-07 08:04:47,304 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-11-07 08:04:47,304 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-11-07 08:04:47,304 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2021-11-07 08:04:47,311 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2021-11-07 08:04:47,311 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-07 08:04:47,312 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 08:04:47,312 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 08:04:47,381 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff96ac7b-fabf-4216-aa5a-10e30a93a5c8/bin/uautomizer-AkOaLMaTGY/witness.graphml [2021-11-07 08:04:47,382 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 08:04:47,384 INFO L168 Benchmark]: Toolchain (without parser) took 3808.55 ms. Allocated memory was 96.5 MB in the beginning and 155.2 MB in the end (delta: 58.7 MB). Free memory was 65.0 MB in the beginning and 73.7 MB in the end (delta: -8.7 MB). Peak memory consumption was 49.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:04:47,384 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 96.5 MB. Free memory is still 50.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:04:47,385 INFO L168 Benchmark]: CACSL2BoogieTranslator took 369.83 ms. Allocated memory is still 96.5 MB. Free memory was 65.0 MB in the beginning and 72.8 MB in the end (delta: -7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 08:04:47,386 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.60 ms. Allocated memory is still 96.5 MB. Free memory was 72.8 MB in the beginning and 71.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:04:47,386 INFO L168 Benchmark]: Boogie Preprocessor took 29.25 ms. Allocated memory is still 96.5 MB. Free memory was 71.2 MB in the beginning and 69.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:04:47,387 INFO L168 Benchmark]: RCFGBuilder took 537.34 ms. Allocated memory is still 96.5 MB. Free memory was 69.6 MB in the beginning and 56.5 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 08:04:47,393 INFO L168 Benchmark]: TraceAbstraction took 2737.49 ms. Allocated memory was 96.5 MB in the beginning and 155.2 MB in the end (delta: 58.7 MB). Free memory was 56.1 MB in the beginning and 76.8 MB in the end (delta: -20.7 MB). Peak memory consumption was 39.5 MB. Max. memory is 16.1 GB. [2021-11-07 08:04:47,394 INFO L168 Benchmark]: Witness Printer took 90.19 ms. Allocated memory is still 155.2 MB. Free memory was 76.8 MB in the beginning and 73.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:04:47,397 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 96.5 MB. Free memory is still 50.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 369.83 ms. Allocated memory is still 96.5 MB. Free memory was 65.0 MB in the beginning and 72.8 MB in the end (delta: -7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.60 ms. Allocated memory is still 96.5 MB. Free memory was 72.8 MB in the beginning and 71.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.25 ms. Allocated memory is still 96.5 MB. Free memory was 71.2 MB in the beginning and 69.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 537.34 ms. Allocated memory is still 96.5 MB. Free memory was 69.6 MB in the beginning and 56.5 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2737.49 ms. Allocated memory was 96.5 MB in the beginning and 155.2 MB in the end (delta: 58.7 MB). Free memory was 56.1 MB in the beginning and 76.8 MB in the end (delta: -20.7 MB). Peak memory consumption was 39.5 MB. Max. memory is 16.1 GB. * Witness Printer took 90.19 ms. Allocated memory is still 155.2 MB. Free memory was 76.8 MB in the beginning and 73.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: 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: 127]: 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 9 procedures, 154 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 73 SDtfs, 30 SDslu, 157 SDs, 0 SdLazy, 139 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=2, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 236 NumberOfCodeBlocks, 236 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 233 ConstructedInterpolants, 0 QuantifiedInterpolants, 455 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2021-11-07 08:04:47,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff96ac7b-fabf-4216-aa5a-10e30a93a5c8/bin/uautomizer-AkOaLMaTGY/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