./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-simple-array-sum.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-simple-array-sum.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg --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 eecffe8522a4364afb75ce7fb01800caae42a8a3ed11b56f212b94255e6f04bc ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:14:11,894 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:14:11,899 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:14:11,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:14:11,965 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:14:11,967 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:14:11,969 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:14:11,971 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:14:11,974 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:14:11,975 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:14:11,976 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:14:11,978 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:14:11,979 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:14:11,980 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:14:11,982 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:14:11,984 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:14:11,986 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:14:11,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:14:11,990 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:14:11,993 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:14:11,995 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:14:11,997 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:14:11,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:14:12,001 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:14:12,005 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:14:12,006 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:14:12,006 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:14:12,008 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:14:12,009 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:14:12,010 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:14:12,011 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:14:12,012 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:14:12,013 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:14:12,014 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:14:12,016 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:14:12,016 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:14:12,017 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:14:12,018 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:14:12,018 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:14:12,020 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:14:12,021 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:14:12,022 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 09:14:12,049 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:14:12,049 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:14:12,050 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:14:12,050 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:14:12,052 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:14:12,052 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:14:12,053 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:14:12,053 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:14:12,054 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:14:12,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:14:12,055 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:14:12,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:14:12,056 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 09:14:12,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:14:12,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 09:14:12,057 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:14:12,057 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:14:12,058 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:14:12,058 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 09:14:12,059 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:14:12,059 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:14:12,060 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:14:12,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:14:12,060 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:14:12,061 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:14:12,061 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 09:14:12,061 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:14:12,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:14:12,062 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 09:14:12,062 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 09:14:12,062 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 09:14:12,063 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:14:12,063 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_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eecffe8522a4364afb75ce7fb01800caae42a8a3ed11b56f212b94255e6f04bc [2021-10-28 09:14:12,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:14:12,448 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:14:12,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:14:12,453 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:14:12,454 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:14:12,455 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/weaver/popl20-simple-array-sum.wvr.c [2021-10-28 09:14:12,534 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg/data/049b09698/7197d01ae3b943ec86fde5e6ba8acf6d/FLAGc182b09be [2021-10-28 09:14:13,150 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:14:13,151 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/sv-benchmarks/c/weaver/popl20-simple-array-sum.wvr.c [2021-10-28 09:14:13,160 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg/data/049b09698/7197d01ae3b943ec86fde5e6ba8acf6d/FLAGc182b09be [2021-10-28 09:14:13,436 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg/data/049b09698/7197d01ae3b943ec86fde5e6ba8acf6d [2021-10-28 09:14:13,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:14:13,441 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:14:13,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:14:13,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:14:13,460 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:14:13,461 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:14:13" (1/1) ... [2021-10-28 09:14:13,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@600c7f5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:13, skipping insertion in model container [2021-10-28 09:14:13,462 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:14:13" (1/1) ... [2021-10-28 09:14:13,468 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:14:13,490 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:14:13,748 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_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/sv-benchmarks/c/weaver/popl20-simple-array-sum.wvr.c[2690,2703] [2021-10-28 09:14:13,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:14:13,768 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:14:13,798 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_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/sv-benchmarks/c/weaver/popl20-simple-array-sum.wvr.c[2690,2703] [2021-10-28 09:14:13,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:14:13,823 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:14:13,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:13 WrapperNode [2021-10-28 09:14:13,825 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:14:13,827 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:14:13,827 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:14:13,827 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:14:13,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:13" (1/1) ... [2021-10-28 09:14:13,861 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:13" (1/1) ... [2021-10-28 09:14:13,897 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:14:13,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:14:13,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:14:13,898 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:14:13,909 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:13" (1/1) ... [2021-10-28 09:14:13,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:13" (1/1) ... [2021-10-28 09:14:13,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:13" (1/1) ... [2021-10-28 09:14:13,913 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:13" (1/1) ... [2021-10-28 09:14:13,925 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:13" (1/1) ... [2021-10-28 09:14:13,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:13" (1/1) ... [2021-10-28 09:14:13,934 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:13" (1/1) ... [2021-10-28 09:14:13,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:14:13,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:14:13,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:14:13,940 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:14:13,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:13" (1/1) ... [2021-10-28 09:14:13,951 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:14:13,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:14:13,997 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:14:14,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:14:14,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:14:14,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 09:14:14,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 09:14:14,053 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-28 09:14:14,054 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-28 09:14:14,054 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-28 09:14:14,054 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-28 09:14:14,054 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-28 09:14:14,055 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-28 09:14:14,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:14:14,055 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-28 09:14:14,055 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-28 09:14:14,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 09:14:14,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:14:14,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:14:14,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:14:14,058 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-28 09:14:14,721 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:14:14,728 INFO L299 CfgBuilder]: Removed 23 assume(true) statements. [2021-10-28 09:14:14,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:14:14 BoogieIcfgContainer [2021-10-28 09:14:14,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:14:14,733 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:14:14,749 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:14:14,753 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:14:14,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:14:13" (1/3) ... [2021-10-28 09:14:14,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65e797cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:14:14, skipping insertion in model container [2021-10-28 09:14:14,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:14:13" (2/3) ... [2021-10-28 09:14:14,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65e797cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:14:14, skipping insertion in model container [2021-10-28 09:14:14,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:14:14" (3/3) ... [2021-10-28 09:14:14,756 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-simple-array-sum.wvr.c [2021-10-28 09:14:14,761 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-28 09:14:14,761 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:14:14,762 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 09:14:14,762 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-28 09:14:14,804 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,804 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,804 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,805 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,805 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,805 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,806 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,806 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,806 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,807 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,807 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,807 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,808 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,808 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,808 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,809 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,809 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,809 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,810 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,810 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,810 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,811 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,811 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,811 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,811 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,812 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,812 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,812 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,813 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,829 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,830 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,830 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,830 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,830 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,831 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,831 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,831 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,831 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,832 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,832 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,832 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,833 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,833 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,833 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,834 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,834 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,834 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,834 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,835 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,835 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,835 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,835 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,836 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,836 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,837 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,837 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,837 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,838 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,838 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,838 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,838 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,839 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,839 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,839 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,839 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,840 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,840 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,840 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,841 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,841 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,841 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,841 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,842 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,842 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,842 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,843 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,843 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,843 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,843 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,844 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,844 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,844 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,844 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,845 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,869 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,870 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,873 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,873 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,874 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~cond~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,874 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,874 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,874 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,877 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,878 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,878 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,880 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,880 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,882 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,883 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,883 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,883 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,884 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:14:14,895 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-28 09:14:14,975 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:14:14,983 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 [2021-10-28 09:14:14,983 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-28 09:14:15,003 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 162 places, 168 transitions, 360 flow [2021-10-28 09:14:15,102 INFO L129 PetriNetUnfolder]: 16/165 cut-off events. [2021-10-28 09:14:15,102 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-28 09:14:15,109 INFO L84 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 165 events. 16/165 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 114 event pairs, 0 based on Foata normal form. 0/148 useless extension candidates. Maximal degree in co-relation 127. Up to 3 conditions per place. [2021-10-28 09:14:15,109 INFO L82 GeneralOperation]: Start removeDead. Operand has 162 places, 168 transitions, 360 flow [2021-10-28 09:14:15,118 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 149 places, 155 transitions, 328 flow [2021-10-28 09:14:15,188 INFO L129 PetriNetUnfolder]: 16/154 cut-off events. [2021-10-28 09:14:15,188 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-28 09:14:15,189 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:14:15,190 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:14:15,190 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 09:14:15,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:14:15,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1560104730, now seen corresponding path program 1 times [2021-10-28 09:14:15,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:14:15,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977767413] [2021-10-28 09:14:15,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:14:15,214 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:14:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:14:15,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:14:15,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:14:15,540 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977767413] [2021-10-28 09:14:15,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977767413] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:14:15,541 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:14:15,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:14:15,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353551844] [2021-10-28 09:14:15,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 09:14:15,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:14:15,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 09:14:15,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:14:15,580 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 168 [2021-10-28 09:14:15,585 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 155 transitions, 328 flow. Second operand has 2 states, 2 states have (on average 159.0) internal successors, (318), 2 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:15,586 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:14:15,586 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 168 [2021-10-28 09:14:15,587 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:14:15,693 INFO L129 PetriNetUnfolder]: 6/145 cut-off events. [2021-10-28 09:14:15,693 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-28 09:14:15,696 INFO L84 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 145 events. 6/145 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 104 event pairs, 0 based on Foata normal form. 10/144 useless extension candidates. Maximal degree in co-relation 154. Up to 3 conditions per place. [2021-10-28 09:14:15,700 INFO L132 encePairwiseOnDemand]: 158/168 looper letters, 0 selfloop transitions, 0 changer transitions 5/145 dead transitions. [2021-10-28 09:14:15,700 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 145 transitions, 308 flow [2021-10-28 09:14:15,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 09:14:15,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-10-28 09:14:15,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 324 transitions. [2021-10-28 09:14:15,730 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9642857142857143 [2021-10-28 09:14:15,731 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 324 transitions. [2021-10-28 09:14:15,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 324 transitions. [2021-10-28 09:14:15,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:14:15,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 324 transitions. [2021-10-28 09:14:15,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 162.0) internal successors, (324), 2 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:15,755 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:15,757 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:15,761 INFO L186 Difference]: Start difference. First operand has 149 places, 155 transitions, 328 flow. Second operand 2 states and 324 transitions. [2021-10-28 09:14:15,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 145 transitions, 308 flow [2021-10-28 09:14:15,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 145 transitions, 296 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-10-28 09:14:15,774 INFO L242 Difference]: Finished difference. Result has 144 places, 140 transitions, 286 flow [2021-10-28 09:14:15,777 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=286, PETRI_PLACES=144, PETRI_TRANSITIONS=140} [2021-10-28 09:14:15,778 INFO L334 CegarLoopForPetriNet]: 149 programPoint places, -5 predicate places. [2021-10-28 09:14:15,778 INFO L470 AbstractCegarLoop]: Abstraction has has 144 places, 140 transitions, 286 flow [2021-10-28 09:14:15,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 159.0) internal successors, (318), 2 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:15,779 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:14:15,779 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:14:15,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 09:14:15,780 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 09:14:15,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:14:15,781 INFO L85 PathProgramCache]: Analyzing trace with hash 452443648, now seen corresponding path program 1 times [2021-10-28 09:14:15,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:14:15,782 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173340560] [2021-10-28 09:14:15,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:14:15,782 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:14:16,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:14:17,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:14:17,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:14:17,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173340560] [2021-10-28 09:14:17,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173340560] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:14:17,600 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:14:17,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-10-28 09:14:17,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786778557] [2021-10-28 09:14:17,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 09:14:17,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:14:17,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 09:14:17,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:14:17,617 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 168 [2021-10-28 09:14:17,620 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 140 transitions, 286 flow. Second operand has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:17,621 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:14:17,622 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 168 [2021-10-28 09:14:17,622 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:14:19,071 INFO L129 PetriNetUnfolder]: 343/1167 cut-off events. [2021-10-28 09:14:19,071 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 09:14:19,079 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1735 conditions, 1167 events. 343/1167 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 7360 event pairs, 90 based on Foata normal form. 2/908 useless extension candidates. Maximal degree in co-relation 1732. Up to 164 conditions per place. [2021-10-28 09:14:19,091 INFO L132 encePairwiseOnDemand]: 143/168 looper letters, 95 selfloop transitions, 30 changer transitions 6/219 dead transitions. [2021-10-28 09:14:19,092 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 219 transitions, 706 flow [2021-10-28 09:14:19,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 09:14:19,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-10-28 09:14:19,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1733 transitions. [2021-10-28 09:14:19,101 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6447172619047619 [2021-10-28 09:14:19,102 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1733 transitions. [2021-10-28 09:14:19,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1733 transitions. [2021-10-28 09:14:19,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:14:19,104 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1733 transitions. [2021-10-28 09:14:19,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 108.3125) internal successors, (1733), 16 states have internal predecessors, (1733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:19,124 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 168.0) internal successors, (2856), 17 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:19,127 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 168.0) internal successors, (2856), 17 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:19,128 INFO L186 Difference]: Start difference. First operand has 144 places, 140 transitions, 286 flow. Second operand 16 states and 1733 transitions. [2021-10-28 09:14:19,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 219 transitions, 706 flow [2021-10-28 09:14:19,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 219 transitions, 706 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-28 09:14:19,138 INFO L242 Difference]: Finished difference. Result has 165 places, 159 transitions, 456 flow [2021-10-28 09:14:19,138 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=456, PETRI_PLACES=165, PETRI_TRANSITIONS=159} [2021-10-28 09:14:19,139 INFO L334 CegarLoopForPetriNet]: 149 programPoint places, 16 predicate places. [2021-10-28 09:14:19,139 INFO L470 AbstractCegarLoop]: Abstraction has has 165 places, 159 transitions, 456 flow [2021-10-28 09:14:19,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 103.0) internal successors, (1339), 13 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:19,141 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:14:19,142 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:14:19,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 09:14:19,142 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 09:14:19,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:14:19,143 INFO L85 PathProgramCache]: Analyzing trace with hash -2123765693, now seen corresponding path program 1 times [2021-10-28 09:14:19,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:14:19,144 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307575094] [2021-10-28 09:14:19,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:14:19,144 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:14:19,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:14:19,272 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:14:19,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:14:19,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307575094] [2021-10-28 09:14:19,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307575094] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:14:19,273 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:14:19,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 09:14:19,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837110460] [2021-10-28 09:14:19,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:14:19,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:14:19,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:14:19,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:14:19,279 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 168 [2021-10-28 09:14:19,282 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 159 transitions, 456 flow. Second operand has 7 states, 7 states have (on average 122.14285714285714) internal successors, (855), 7 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:19,282 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:14:19,282 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 168 [2021-10-28 09:14:19,282 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:14:19,844 INFO L129 PetriNetUnfolder]: 638/1602 cut-off events. [2021-10-28 09:14:19,844 INFO L130 PetriNetUnfolder]: For 86/86 co-relation queries the response was YES. [2021-10-28 09:14:19,857 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2753 conditions, 1602 events. 638/1602 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 9716 event pairs, 292 based on Foata normal form. 0/1148 useless extension candidates. Maximal degree in co-relation 2738. Up to 575 conditions per place. [2021-10-28 09:14:19,874 INFO L132 encePairwiseOnDemand]: 154/168 looper letters, 74 selfloop transitions, 18 changer transitions 0/199 dead transitions. [2021-10-28 09:14:19,874 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 199 transitions, 732 flow [2021-10-28 09:14:19,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 09:14:19,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-10-28 09:14:19,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1390 transitions. [2021-10-28 09:14:19,881 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7521645021645021 [2021-10-28 09:14:19,881 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1390 transitions. [2021-10-28 09:14:19,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1390 transitions. [2021-10-28 09:14:19,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:14:19,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1390 transitions. [2021-10-28 09:14:19,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 126.36363636363636) internal successors, (1390), 11 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:19,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 168.0) internal successors, (2016), 12 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:19,897 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 168.0) internal successors, (2016), 12 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:19,897 INFO L186 Difference]: Start difference. First operand has 165 places, 159 transitions, 456 flow. Second operand 11 states and 1390 transitions. [2021-10-28 09:14:19,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 199 transitions, 732 flow [2021-10-28 09:14:19,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 199 transitions, 720 flow, removed 4 selfloop flow, removed 5 redundant places. [2021-10-28 09:14:19,910 INFO L242 Difference]: Finished difference. Result has 168 places, 159 transitions, 482 flow [2021-10-28 09:14:19,910 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=482, PETRI_PLACES=168, PETRI_TRANSITIONS=159} [2021-10-28 09:14:19,911 INFO L334 CegarLoopForPetriNet]: 149 programPoint places, 19 predicate places. [2021-10-28 09:14:19,911 INFO L470 AbstractCegarLoop]: Abstraction has has 168 places, 159 transitions, 482 flow [2021-10-28 09:14:19,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 122.14285714285714) internal successors, (855), 7 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:19,912 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:14:19,912 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:14:19,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 09:14:19,913 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 09:14:19,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:14:19,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1030805394, now seen corresponding path program 1 times [2021-10-28 09:14:19,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:14:19,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342777291] [2021-10-28 09:14:19,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:14:19,925 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:14:19,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:14:20,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:14:20,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:14:20,077 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342777291] [2021-10-28 09:14:20,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342777291] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:14:20,077 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:14:20,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-28 09:14:20,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848716522] [2021-10-28 09:14:20,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:14:20,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:14:20,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:14:20,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:14:20,084 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 168 [2021-10-28 09:14:20,086 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 159 transitions, 482 flow. Second operand has 7 states, 7 states have (on average 123.0) internal successors, (861), 7 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:20,086 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:14:20,086 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 168 [2021-10-28 09:14:20,086 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:14:20,668 INFO L129 PetriNetUnfolder]: 329/1160 cut-off events. [2021-10-28 09:14:20,668 INFO L130 PetriNetUnfolder]: For 260/260 co-relation queries the response was YES. [2021-10-28 09:14:20,678 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1931 conditions, 1160 events. 329/1160 cut-off events. For 260/260 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 7250 event pairs, 169 based on Foata normal form. 0/917 useless extension candidates. Maximal degree in co-relation 1917. Up to 408 conditions per place. [2021-10-28 09:14:20,687 INFO L132 encePairwiseOnDemand]: 154/168 looper letters, 36 selfloop transitions, 10 changer transitions 41/193 dead transitions. [2021-10-28 09:14:20,688 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 193 transitions, 720 flow [2021-10-28 09:14:20,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 09:14:20,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-10-28 09:14:20,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1394 transitions. [2021-10-28 09:14:20,695 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7543290043290043 [2021-10-28 09:14:20,695 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1394 transitions. [2021-10-28 09:14:20,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1394 transitions. [2021-10-28 09:14:20,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:14:20,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1394 transitions. [2021-10-28 09:14:20,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 126.72727272727273) internal successors, (1394), 11 states have internal predecessors, (1394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:20,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 168.0) internal successors, (2016), 12 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:20,709 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 168.0) internal successors, (2016), 12 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:20,710 INFO L186 Difference]: Start difference. First operand has 168 places, 159 transitions, 482 flow. Second operand 11 states and 1394 transitions. [2021-10-28 09:14:20,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 193 transitions, 720 flow [2021-10-28 09:14:20,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 193 transitions, 689 flow, removed 1 selfloop flow, removed 7 redundant places. [2021-10-28 09:14:20,720 INFO L242 Difference]: Finished difference. Result has 175 places, 146 transitions, 413 flow [2021-10-28 09:14:20,721 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=441, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=413, PETRI_PLACES=175, PETRI_TRANSITIONS=146} [2021-10-28 09:14:20,721 INFO L334 CegarLoopForPetriNet]: 149 programPoint places, 26 predicate places. [2021-10-28 09:14:20,721 INFO L470 AbstractCegarLoop]: Abstraction has has 175 places, 146 transitions, 413 flow [2021-10-28 09:14:20,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 123.0) internal successors, (861), 7 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:20,722 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:14:20,722 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:14:20,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 09:14:20,723 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 09:14:20,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:14:20,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1777200200, now seen corresponding path program 1 times [2021-10-28 09:14:20,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:14:20,724 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859163788] [2021-10-28 09:14:20,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:14:20,725 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:14:20,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:14:20,854 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 09:14:20,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:14:20,854 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859163788] [2021-10-28 09:14:20,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859163788] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:14:20,855 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1794974174] [2021-10-28 09:14:20,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:14:20,855 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:14:20,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:14:20,857 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:14:20,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 09:14:21,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:14:21,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:14:21,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:14:21,611 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 09:14:21,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1794974174] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:14:21,612 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:14:21,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 10 [2021-10-28 09:14:21,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607272462] [2021-10-28 09:14:21,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 09:14:21,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:14:21,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 09:14:21,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:14:21,628 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 168 [2021-10-28 09:14:21,631 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 146 transitions, 413 flow. Second operand has 10 states, 10 states have (on average 121.8) internal successors, (1218), 10 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:21,632 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:14:21,632 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 168 [2021-10-28 09:14:21,632 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:14:22,050 INFO L129 PetriNetUnfolder]: 494/1013 cut-off events. [2021-10-28 09:14:22,050 INFO L130 PetriNetUnfolder]: For 401/401 co-relation queries the response was YES. [2021-10-28 09:14:22,058 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2085 conditions, 1013 events. 494/1013 cut-off events. For 401/401 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 4937 event pairs, 174 based on Foata normal form. 15/812 useless extension candidates. Maximal degree in co-relation 2068. Up to 430 conditions per place. [2021-10-28 09:14:22,092 INFO L132 encePairwiseOnDemand]: 156/168 looper letters, 47 selfloop transitions, 11 changer transitions 0/161 dead transitions. [2021-10-28 09:14:22,092 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 161 transitions, 569 flow [2021-10-28 09:14:22,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:14:22,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-28 09:14:22,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1119 transitions. [2021-10-28 09:14:22,099 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7400793650793651 [2021-10-28 09:14:22,100 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1119 transitions. [2021-10-28 09:14:22,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1119 transitions. [2021-10-28 09:14:22,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:14:22,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1119 transitions. [2021-10-28 09:14:22,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 124.33333333333333) internal successors, (1119), 9 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:22,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 168.0) internal successors, (1680), 10 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:22,112 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 168.0) internal successors, (1680), 10 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:22,112 INFO L186 Difference]: Start difference. First operand has 175 places, 146 transitions, 413 flow. Second operand 9 states and 1119 transitions. [2021-10-28 09:14:22,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 161 transitions, 569 flow [2021-10-28 09:14:22,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 161 transitions, 484 flow, removed 14 selfloop flow, removed 21 redundant places. [2021-10-28 09:14:22,122 INFO L242 Difference]: Finished difference. Result has 154 places, 148 transitions, 372 flow [2021-10-28 09:14:22,122 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=372, PETRI_PLACES=154, PETRI_TRANSITIONS=148} [2021-10-28 09:14:22,123 INFO L334 CegarLoopForPetriNet]: 149 programPoint places, 5 predicate places. [2021-10-28 09:14:22,125 INFO L470 AbstractCegarLoop]: Abstraction has has 154 places, 148 transitions, 372 flow [2021-10-28 09:14:22,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 121.8) internal successors, (1218), 10 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:22,128 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:14:22,129 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:14:22,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:14:22,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:14:22,355 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 09:14:22,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:14:22,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1104699755, now seen corresponding path program 1 times [2021-10-28 09:14:22,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:14:22,356 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740471221] [2021-10-28 09:14:22,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:14:22,356 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:14:22,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:14:22,542 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:14:22,543 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:14:22,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740471221] [2021-10-28 09:14:22,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740471221] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:14:22,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22586640] [2021-10-28 09:14:22,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:14:22,545 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:14:22,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:14:22,547 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:14:22,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 09:14:22,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:14:22,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:14:22,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:14:23,319 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:14:23,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22586640] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:14:23,326 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:14:23,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 10 [2021-10-28 09:14:23,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153231625] [2021-10-28 09:14:23,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 09:14:23,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:14:23,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 09:14:23,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:14:23,333 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 168 [2021-10-28 09:14:23,335 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 148 transitions, 372 flow. Second operand has 10 states, 10 states have (on average 122.9) internal successors, (1229), 10 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:23,335 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:14:23,336 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 168 [2021-10-28 09:14:23,336 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:14:23,736 INFO L129 PetriNetUnfolder]: 317/827 cut-off events. [2021-10-28 09:14:23,737 INFO L130 PetriNetUnfolder]: For 74/86 co-relation queries the response was YES. [2021-10-28 09:14:23,741 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1434 conditions, 827 events. 317/827 cut-off events. For 74/86 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4284 event pairs, 101 based on Foata normal form. 12/652 useless extension candidates. Maximal degree in co-relation 1426. Up to 267 conditions per place. [2021-10-28 09:14:23,749 INFO L132 encePairwiseOnDemand]: 156/168 looper letters, 43 selfloop transitions, 11 changer transitions 0/161 dead transitions. [2021-10-28 09:14:23,749 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 161 transitions, 508 flow [2021-10-28 09:14:23,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:14:23,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-28 09:14:23,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1126 transitions. [2021-10-28 09:14:23,755 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7447089947089947 [2021-10-28 09:14:23,756 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1126 transitions. [2021-10-28 09:14:23,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1126 transitions. [2021-10-28 09:14:23,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:14:23,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1126 transitions. [2021-10-28 09:14:23,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 125.11111111111111) internal successors, (1126), 9 states have internal predecessors, (1126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:23,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 168.0) internal successors, (1680), 10 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:23,769 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 168.0) internal successors, (1680), 10 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:23,769 INFO L186 Difference]: Start difference. First operand has 154 places, 148 transitions, 372 flow. Second operand 9 states and 1126 transitions. [2021-10-28 09:14:23,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 161 transitions, 508 flow [2021-10-28 09:14:23,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 161 transitions, 490 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-10-28 09:14:23,777 INFO L242 Difference]: Finished difference. Result has 157 places, 149 transitions, 384 flow [2021-10-28 09:14:23,778 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=384, PETRI_PLACES=157, PETRI_TRANSITIONS=149} [2021-10-28 09:14:23,779 INFO L334 CegarLoopForPetriNet]: 149 programPoint places, 8 predicate places. [2021-10-28 09:14:23,780 INFO L470 AbstractCegarLoop]: Abstraction has has 157 places, 149 transitions, 384 flow [2021-10-28 09:14:23,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 122.9) internal successors, (1229), 10 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:23,786 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:14:23,786 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:14:23,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:14:24,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-10-28 09:14:24,003 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 09:14:24,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:14:24,003 INFO L85 PathProgramCache]: Analyzing trace with hash 71489465, now seen corresponding path program 1 times [2021-10-28 09:14:24,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:14:24,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111573390] [2021-10-28 09:14:24,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:14:24,004 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:14:24,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:14:24,128 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:14:24,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:14:24,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111573390] [2021-10-28 09:14:24,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111573390] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:14:24,131 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805951913] [2021-10-28 09:14:24,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:14:24,131 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:14:24,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:14:24,141 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:14:24,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-28 09:14:24,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:14:24,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:14:24,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:14:24,864 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:14:24,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [805951913] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:14:24,868 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:14:24,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 10 [2021-10-28 09:14:24,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451663382] [2021-10-28 09:14:24,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 09:14:24,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:14:24,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 09:14:24,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:14:24,875 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 168 [2021-10-28 09:14:24,879 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 149 transitions, 384 flow. Second operand has 10 states, 10 states have (on average 122.3) internal successors, (1223), 10 states have internal predecessors, (1223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:24,880 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:14:24,880 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 168 [2021-10-28 09:14:24,880 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:14:25,345 INFO L129 PetriNetUnfolder]: 432/1023 cut-off events. [2021-10-28 09:14:25,345 INFO L130 PetriNetUnfolder]: For 180/283 co-relation queries the response was YES. [2021-10-28 09:14:25,352 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1966 conditions, 1023 events. 432/1023 cut-off events. For 180/283 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 6153 event pairs, 186 based on Foata normal form. 83/955 useless extension candidates. Maximal degree in co-relation 1957. Up to 413 conditions per place. [2021-10-28 09:14:25,364 INFO L132 encePairwiseOnDemand]: 156/168 looper letters, 45 selfloop transitions, 11 changer transitions 0/163 dead transitions. [2021-10-28 09:14:25,364 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 163 transitions, 528 flow [2021-10-28 09:14:25,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:14:25,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-28 09:14:25,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1119 transitions. [2021-10-28 09:14:25,371 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7400793650793651 [2021-10-28 09:14:25,371 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1119 transitions. [2021-10-28 09:14:25,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1119 transitions. [2021-10-28 09:14:25,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:14:25,373 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1119 transitions. [2021-10-28 09:14:25,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 124.33333333333333) internal successors, (1119), 9 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:25,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 168.0) internal successors, (1680), 10 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:25,384 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 168.0) internal successors, (1680), 10 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:25,384 INFO L186 Difference]: Start difference. First operand has 157 places, 149 transitions, 384 flow. Second operand 9 states and 1119 transitions. [2021-10-28 09:14:25,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 163 transitions, 528 flow [2021-10-28 09:14:25,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 163 transitions, 508 flow, removed 0 selfloop flow, removed 7 redundant places. [2021-10-28 09:14:25,391 INFO L242 Difference]: Finished difference. Result has 159 places, 150 transitions, 394 flow [2021-10-28 09:14:25,392 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=394, PETRI_PLACES=159, PETRI_TRANSITIONS=150} [2021-10-28 09:14:25,392 INFO L334 CegarLoopForPetriNet]: 149 programPoint places, 10 predicate places. [2021-10-28 09:14:25,393 INFO L470 AbstractCegarLoop]: Abstraction has has 159 places, 150 transitions, 394 flow [2021-10-28 09:14:25,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 122.3) internal successors, (1223), 10 states have internal predecessors, (1223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:25,394 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:14:25,394 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:14:25,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:14:25,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:14:25,609 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 09:14:25,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:14:25,610 INFO L85 PathProgramCache]: Analyzing trace with hash 2117315303, now seen corresponding path program 1 times [2021-10-28 09:14:25,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:14:25,610 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799315123] [2021-10-28 09:14:25,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:14:25,611 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:14:25,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:14:25,781 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 09:14:25,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:14:25,782 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799315123] [2021-10-28 09:14:25,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799315123] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:14:25,782 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:14:25,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 09:14:25,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511624376] [2021-10-28 09:14:25,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 09:14:25,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:14:25,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:14:25,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:14:25,787 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 168 [2021-10-28 09:14:25,788 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 150 transitions, 394 flow. Second operand has 5 states, 5 states have (on average 147.2) internal successors, (736), 5 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:25,788 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:14:25,789 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 168 [2021-10-28 09:14:25,789 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:14:25,902 INFO L129 PetriNetUnfolder]: 68/391 cut-off events. [2021-10-28 09:14:25,902 INFO L130 PetriNetUnfolder]: For 19/33 co-relation queries the response was YES. [2021-10-28 09:14:25,906 INFO L84 FinitePrefix]: Finished finitePrefix Result has 623 conditions, 391 events. 68/391 cut-off events. For 19/33 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1527 event pairs, 27 based on Foata normal form. 2/383 useless extension candidates. Maximal degree in co-relation 613. Up to 89 conditions per place. [2021-10-28 09:14:25,910 INFO L132 encePairwiseOnDemand]: 162/168 looper letters, 22 selfloop transitions, 8 changer transitions 0/165 dead transitions. [2021-10-28 09:14:25,911 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 165 transitions, 489 flow [2021-10-28 09:14:25,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:14:25,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-28 09:14:25,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 899 transitions. [2021-10-28 09:14:25,916 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8918650793650794 [2021-10-28 09:14:25,916 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 899 transitions. [2021-10-28 09:14:25,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 899 transitions. [2021-10-28 09:14:25,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:14:25,918 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 899 transitions. [2021-10-28 09:14:25,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 149.83333333333334) internal successors, (899), 6 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:25,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 168.0) internal successors, (1176), 7 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:25,926 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 168.0) internal successors, (1176), 7 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:25,926 INFO L186 Difference]: Start difference. First operand has 159 places, 150 transitions, 394 flow. Second operand 6 states and 899 transitions. [2021-10-28 09:14:25,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 165 transitions, 489 flow [2021-10-28 09:14:25,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 165 transitions, 469 flow, removed 0 selfloop flow, removed 7 redundant places. [2021-10-28 09:14:25,933 INFO L242 Difference]: Finished difference. Result has 162 places, 158 transitions, 440 flow [2021-10-28 09:14:25,934 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=440, PETRI_PLACES=162, PETRI_TRANSITIONS=158} [2021-10-28 09:14:25,934 INFO L334 CegarLoopForPetriNet]: 149 programPoint places, 13 predicate places. [2021-10-28 09:14:25,935 INFO L470 AbstractCegarLoop]: Abstraction has has 162 places, 158 transitions, 440 flow [2021-10-28 09:14:25,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 147.2) internal successors, (736), 5 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:25,936 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:14:25,936 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:14:25,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 09:14:25,936 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 09:14:25,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:14:25,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1588104303, now seen corresponding path program 2 times [2021-10-28 09:14:25,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:14:25,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333992363] [2021-10-28 09:14:25,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:14:25,938 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:14:26,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:14:26,100 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 09:14:26,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:14:26,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333992363] [2021-10-28 09:14:26,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333992363] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:14:26,108 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:14:26,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:14:26,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282742129] [2021-10-28 09:14:26,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:14:26,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:14:26,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:14:26,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:14:26,116 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 168 [2021-10-28 09:14:26,118 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 158 transitions, 440 flow. Second operand has 6 states, 6 states have (on average 141.0) internal successors, (846), 6 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:26,118 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:14:26,118 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 168 [2021-10-28 09:14:26,119 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:14:26,522 INFO L129 PetriNetUnfolder]: 346/1029 cut-off events. [2021-10-28 09:14:26,522 INFO L130 PetriNetUnfolder]: For 316/358 co-relation queries the response was YES. [2021-10-28 09:14:26,535 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2234 conditions, 1029 events. 346/1029 cut-off events. For 316/358 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 5118 event pairs, 121 based on Foata normal form. 18/1033 useless extension candidates. Maximal degree in co-relation 2220. Up to 329 conditions per place. [2021-10-28 09:14:26,549 INFO L132 encePairwiseOnDemand]: 160/168 looper letters, 65 selfloop transitions, 21 changer transitions 0/213 dead transitions. [2021-10-28 09:14:26,549 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 213 transitions, 812 flow [2021-10-28 09:14:26,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:14:26,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-28 09:14:26,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1317 transitions. [2021-10-28 09:14:26,556 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.871031746031746 [2021-10-28 09:14:26,556 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1317 transitions. [2021-10-28 09:14:26,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1317 transitions. [2021-10-28 09:14:26,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:14:26,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1317 transitions. [2021-10-28 09:14:26,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 146.33333333333334) internal successors, (1317), 9 states have internal predecessors, (1317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:26,569 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 168.0) internal successors, (1680), 10 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:26,570 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 168.0) internal successors, (1680), 10 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:26,570 INFO L186 Difference]: Start difference. First operand has 162 places, 158 transitions, 440 flow. Second operand 9 states and 1317 transitions. [2021-10-28 09:14:26,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 213 transitions, 812 flow [2021-10-28 09:14:26,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 213 transitions, 812 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-28 09:14:26,580 INFO L242 Difference]: Finished difference. Result has 176 places, 175 transitions, 622 flow [2021-10-28 09:14:26,581 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=622, PETRI_PLACES=176, PETRI_TRANSITIONS=175} [2021-10-28 09:14:26,581 INFO L334 CegarLoopForPetriNet]: 149 programPoint places, 27 predicate places. [2021-10-28 09:14:26,581 INFO L470 AbstractCegarLoop]: Abstraction has has 176 places, 175 transitions, 622 flow [2021-10-28 09:14:26,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 141.0) internal successors, (846), 6 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:26,582 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:14:26,583 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:14:26,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-28 09:14:26,583 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-28 09:14:26,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:14:26,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1444457831, now seen corresponding path program 3 times [2021-10-28 09:14:26,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:14:26,587 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226938800] [2021-10-28 09:14:26,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:14:26,587 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:14:26,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:14:26,766 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 09:14:26,767 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:14:26,767 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226938800] [2021-10-28 09:14:26,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226938800] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:14:26,767 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892725913] [2021-10-28 09:14:26,768 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 09:14:26,768 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:14:26,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:14:26,769 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:14:26,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-28 09:14:27,093 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-10-28 09:14:27,093 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:14:27,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 09:14:27,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:14:27,583 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-28 09:14:27,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [892725913] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:14:27,583 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:14:27,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2021-10-28 09:14:27,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043061348] [2021-10-28 09:14:27,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:14:27,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:14:27,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:14:27,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-10-28 09:14:27,588 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 168 [2021-10-28 09:14:27,589 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 175 transitions, 622 flow. Second operand has 6 states, 6 states have (on average 120.33333333333333) internal successors, (722), 6 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:27,590 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:14:27,590 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 168 [2021-10-28 09:14:27,590 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:14:27,709 INFO L129 PetriNetUnfolder]: 0/37 cut-off events. [2021-10-28 09:14:27,709 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2021-10-28 09:14:27,709 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 37 events. 0/37 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 1/38 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2021-10-28 09:14:27,710 INFO L132 encePairwiseOnDemand]: 163/168 looper letters, 0 selfloop transitions, 0 changer transitions 37/37 dead transitions. [2021-10-28 09:14:27,710 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 37 transitions, 113 flow [2021-10-28 09:14:27,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:14:27,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-28 09:14:27,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 697 transitions. [2021-10-28 09:14:27,714 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.691468253968254 [2021-10-28 09:14:27,714 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 697 transitions. [2021-10-28 09:14:27,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 697 transitions. [2021-10-28 09:14:27,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:14:27,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 697 transitions. [2021-10-28 09:14:27,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 116.16666666666667) internal successors, (697), 6 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:27,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 168.0) internal successors, (1176), 7 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:27,722 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 168.0) internal successors, (1176), 7 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:27,723 INFO L186 Difference]: Start difference. First operand has 176 places, 175 transitions, 622 flow. Second operand 6 states and 697 transitions. [2021-10-28 09:14:27,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 37 transitions, 113 flow [2021-10-28 09:14:27,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 37 transitions, 103 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-10-28 09:14:27,724 INFO L242 Difference]: Finished difference. Result has 60 places, 0 transitions, 0 flow [2021-10-28 09:14:27,725 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=60, PETRI_TRANSITIONS=0} [2021-10-28 09:14:27,726 INFO L334 CegarLoopForPetriNet]: 149 programPoint places, -89 predicate places. [2021-10-28 09:14:27,726 INFO L470 AbstractCegarLoop]: Abstraction has has 60 places, 0 transitions, 0 flow [2021-10-28 09:14:27,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 120.33333333333333) internal successors, (722), 6 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:14:27,729 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:14:27,730 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-28 09:14:27,730 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-28 09:14:27,731 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-28 09:14:27,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:14:27,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:14:27,955 INFO L731 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:14:27,958 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-28 09:14:27,958 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:14:27,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:14:27 BasicIcfg [2021-10-28 09:14:27,962 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:14:27,963 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:14:27,963 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:14:27,963 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:14:27,964 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:14:14" (3/4) ... [2021-10-28 09:14:27,968 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 09:14:27,976 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-28 09:14:27,976 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-28 09:14:27,976 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2021-10-28 09:14:27,983 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-10-28 09:14:27,984 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-28 09:14:27,984 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 09:14:27,985 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 09:14:28,044 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:14:28,044 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:14:28,046 INFO L168 Benchmark]: Toolchain (without parser) took 14603.93 ms. Allocated memory was 119.5 MB in the beginning and 220.2 MB in the end (delta: 100.7 MB). Free memory was 77.3 MB in the beginning and 171.2 MB in the end (delta: -93.9 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. [2021-10-28 09:14:28,046 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 119.5 MB. Free memory was 93.9 MB in the beginning and 93.8 MB in the end (delta: 65.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:14:28,047 INFO L168 Benchmark]: CACSL2BoogieTranslator took 376.53 ms. Allocated memory is still 119.5 MB. Free memory was 77.1 MB in the beginning and 91.7 MB in the end (delta: -14.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:14:28,048 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.35 ms. Allocated memory is still 119.5 MB. Free memory was 91.7 MB in the beginning and 89.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:14:28,048 INFO L168 Benchmark]: Boogie Preprocessor took 41.23 ms. Allocated memory is still 119.5 MB. Free memory was 89.9 MB in the beginning and 88.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:14:28,049 INFO L168 Benchmark]: RCFGBuilder took 791.60 ms. Allocated memory is still 119.5 MB. Free memory was 88.2 MB in the beginning and 71.4 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-28 09:14:28,049 INFO L168 Benchmark]: TraceAbstraction took 13228.72 ms. Allocated memory was 119.5 MB in the beginning and 220.2 MB in the end (delta: 100.7 MB). Free memory was 71.1 MB in the beginning and 174.9 MB in the end (delta: -103.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:14:28,050 INFO L168 Benchmark]: Witness Printer took 81.72 ms. Allocated memory is still 220.2 MB. Free memory was 174.9 MB in the beginning and 171.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:14:28,052 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 119.5 MB. Free memory was 93.9 MB in the beginning and 93.8 MB in the end (delta: 65.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 376.53 ms. Allocated memory is still 119.5 MB. Free memory was 77.1 MB in the beginning and 91.7 MB in the end (delta: -14.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 70.35 ms. Allocated memory is still 119.5 MB. Free memory was 91.7 MB in the beginning and 89.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.23 ms. Allocated memory is still 119.5 MB. Free memory was 89.9 MB in the beginning and 88.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 791.60 ms. Allocated memory is still 119.5 MB. Free memory was 88.2 MB in the beginning and 71.4 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 13228.72 ms. Allocated memory was 119.5 MB in the beginning and 220.2 MB in the end (delta: 100.7 MB). Free memory was 71.1 MB in the beginning and 174.9 MB in the end (delta: -103.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 81.72 ms. Allocated memory is still 220.2 MB. Free memory was 174.9 MB in the beginning and 171.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 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: 103]: 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, 188 locations, 4 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: 12.9s, OverallIterations: 10, TraceHistogramMax: 2, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 5.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 135 SDtfs, 1255 SDslu, 259 SDs, 0 SdLazy, 1031 SolverSat, 72 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 648 GetRequests, 530 SyntacticMatches, 3 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=622occurred in iteration=9, InterpolantAutomatonStates: 88, 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: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 1766 NumberOfCodeBlocks, 1760 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1752 ConstructedInterpolants, 0 QuantifiedInterpolants, 6014 SizeOfPredicates, 19 NumberOfNonLiveVariables, 1192 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 14 InterpolantComputations, 7 PerfectInterpolantSequences, 46/54 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! [2021-10-28 09:14:28,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_306a4a89-12cc-4e2c-8db1-95d9e4e5409d/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...