./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/rule57_ebda_blast.c_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed310e7-c61d-483d-bcbe-fcb6e59571b5/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed310e7-c61d-483d-bcbe-fcb6e59571b5/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed310e7-c61d-483d-bcbe-fcb6e59571b5/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed310e7-c61d-483d-bcbe-fcb6e59571b5/bin/uautomizer-hJ6jxDFKc3/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/rule57_ebda_blast.c_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed310e7-c61d-483d-bcbe-fcb6e59571b5/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed310e7-c61d-483d-bcbe-fcb6e59571b5/bin/uautomizer-hJ6jxDFKc3 --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 ef4d0bf6c3c7f70a960b0b2ed556bbb6c40d8116 .............................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 19:54:55,979 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:54:55,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:54:56,021 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:54:56,022 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:54:56,024 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:54:56,026 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:54:56,029 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:54:56,032 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:54:56,033 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:54:56,035 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:54:56,037 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:54:56,038 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:54:56,040 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:54:56,042 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:54:56,044 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:54:56,045 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:54:56,046 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:54:56,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:54:56,054 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:54:56,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:54:56,062 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:54:56,064 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:54:56,067 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:54:56,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:54:56,085 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:54:56,086 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:54:56,087 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:54:56,089 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:54:56,091 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:54:56,092 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:54:56,093 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:54:56,096 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:54:56,097 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:54:56,100 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:54:56,100 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:54:56,101 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:54:56,101 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:54:56,102 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:54:56,103 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:54:56,104 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:54:56,105 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed310e7-c61d-483d-bcbe-fcb6e59571b5/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-15 19:54:56,154 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:54:56,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:54:56,158 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:54:56,158 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:54:56,160 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:54:56,160 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:54:56,160 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:54:56,161 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:54:56,161 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 19:54:56,161 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:54:56,163 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 19:54:56,163 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:54:56,163 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-15 19:54:56,163 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-15 19:54:56,164 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-15 19:54:56,164 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 19:54:56,164 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:54:56,165 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:54:56,165 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-15 19:54:56,165 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:54:56,165 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:54:56,166 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-15 19:54:56,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:54:56,166 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:54:56,167 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-15 19:54:56,167 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-15 19:54:56,167 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:54:56,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-15 19:54:56,168 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-15 19:54:56,170 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-15 19:54:56,171 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-15 19:54:56,171 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:54:56,171 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_7ed310e7-c61d-483d-bcbe-fcb6e59571b5/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed310e7-c61d-483d-bcbe-fcb6e59571b5/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef4d0bf6c3c7f70a960b0b2ed556bbb6c40d8116 [2021-10-15 19:54:56,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:54:56,528 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:54:56,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:54:56,533 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:54:56,534 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:54:56,536 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed310e7-c61d-483d-bcbe-fcb6e59571b5/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/ldv-regression/rule57_ebda_blast.c_1.i [2021-10-15 19:54:56,637 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed310e7-c61d-483d-bcbe-fcb6e59571b5/bin/uautomizer-hJ6jxDFKc3/data/db48cff7c/a805038f6eda49e6acf69fd83fff110f/FLAG6452d634e [2021-10-15 19:54:57,180 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:54:57,182 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed310e7-c61d-483d-bcbe-fcb6e59571b5/sv-benchmarks/c/ldv-regression/rule57_ebda_blast.c_1.i [2021-10-15 19:54:57,196 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed310e7-c61d-483d-bcbe-fcb6e59571b5/bin/uautomizer-hJ6jxDFKc3/data/db48cff7c/a805038f6eda49e6acf69fd83fff110f/FLAG6452d634e [2021-10-15 19:54:57,549 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed310e7-c61d-483d-bcbe-fcb6e59571b5/bin/uautomizer-hJ6jxDFKc3/data/db48cff7c/a805038f6eda49e6acf69fd83fff110f [2021-10-15 19:54:57,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:54:57,561 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:54:57,577 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:54:57,578 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:54:57,582 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:54:57,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:54:57" (1/1) ... [2021-10-15 19:54:57,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c8d8943 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:54:57, skipping insertion in model container [2021-10-15 19:54:57,584 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:54:57" (1/1) ... [2021-10-15 19:54:57,594 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:54:57,616 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:54:57,755 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_7ed310e7-c61d-483d-bcbe-fcb6e59571b5/sv-benchmarks/c/ldv-regression/rule57_ebda_blast.c_1.i[303,316] [2021-10-15 19:54:57,787 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:54:57,803 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:54:57,816 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_7ed310e7-c61d-483d-bcbe-fcb6e59571b5/sv-benchmarks/c/ldv-regression/rule57_ebda_blast.c_1.i[303,316] [2021-10-15 19:54:57,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:54:57,848 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:54:57,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:54:57 WrapperNode [2021-10-15 19:54:57,849 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:54:57,851 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:54:57,851 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:54:57,851 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:54:57,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:54:57" (1/1) ... [2021-10-15 19:54:57,872 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:54:57" (1/1) ... [2021-10-15 19:54:57,902 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:54:57,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:54:57,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:54:57,904 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:54:57,914 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:54:57" (1/1) ... [2021-10-15 19:54:57,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:54:57" (1/1) ... [2021-10-15 19:54:57,918 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:54:57" (1/1) ... [2021-10-15 19:54:57,918 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:54:57" (1/1) ... [2021-10-15 19:54:57,928 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:54:57" (1/1) ... [2021-10-15 19:54:57,930 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:54:57" (1/1) ... [2021-10-15 19:54:57,933 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:54:57" (1/1) ... [2021-10-15 19:54:57,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:54:57,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:54:57,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:54:57,946 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:54:57,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:54:57" (1/1) ... [2021-10-15 19:54:57,957 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:54:57,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed310e7-c61d-483d-bcbe-fcb6e59571b5/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:54:57,991 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed310e7-c61d-483d-bcbe-fcb6e59571b5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-15 19:54:58,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed310e7-c61d-483d-bcbe-fcb6e59571b5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-15 19:54:58,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-15 19:54:58,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-15 19:54:58,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-15 19:54:58,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 19:54:58,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-15 19:54:58,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-15 19:54:58,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:54:58,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:54:58,626 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:54:58,626 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2021-10-15 19:54:58,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:54:58 BoogieIcfgContainer [2021-10-15 19:54:58,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:54:58,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-15 19:54:58,632 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-15 19:54:58,644 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-15 19:54:58,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 07:54:57" (1/3) ... [2021-10-15 19:54:58,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b1f5f4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:54:58, skipping insertion in model container [2021-10-15 19:54:58,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:54:57" (2/3) ... [2021-10-15 19:54:58,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b1f5f4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:54:58, skipping insertion in model container [2021-10-15 19:54:58,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:54:58" (3/3) ... [2021-10-15 19:54:58,676 INFO L111 eAbstractionObserver]: Analyzing ICFG rule57_ebda_blast.c_1.i [2021-10-15 19:54:58,685 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-15 19:54:58,686 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-15 19:54:58,761 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-15 19:54:58,769 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, mConcurrency=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 [2021-10-15 19:54:58,770 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-15 19:54:58,783 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 30 places, 38 transitions, 76 flow [2021-10-15 19:54:58,815 INFO L129 PetriNetUnfolder]: 9/38 cut-off events. [2021-10-15 19:54:58,816 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:54:58,818 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 38 events. 9/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-10-15 19:54:58,819 INFO L82 GeneralOperation]: Start removeDead. Operand has 30 places, 38 transitions, 76 flow [2021-10-15 19:54:58,825 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 27 places, 33 transitions, 66 flow [2021-10-15 19:54:58,830 INFO L129 PetriNetUnfolder]: 1/15 cut-off events. [2021-10-15 19:54:58,830 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:54:58,831 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:54:58,832 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:54:58,833 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:54:58,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:54:58,840 INFO L82 PathProgramCache]: Analyzing trace with hash -1387683168, now seen corresponding path program 1 times [2021-10-15 19:54:58,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:54:58,853 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104783943] [2021-10-15 19:54:58,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:54:58,855 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:54:58,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:54:59,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:54:59,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:54:59,105 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104783943] [2021-10-15 19:54:59,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104783943] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:54:59,107 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:54:59,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-15 19:54:59,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878243550] [2021-10-15 19:54:59,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-15 19:54:59,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:54:59,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-15 19:54:59,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-15 19:54:59,158 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 38 [2021-10-15 19:54:59,165 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 33 transitions, 66 flow. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:54:59,166 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:54:59,166 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 38 [2021-10-15 19:54:59,168 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:54:59,275 INFO L129 PetriNetUnfolder]: 6/32 cut-off events. [2021-10-15 19:54:59,275 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:54:59,277 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 32 events. 6/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 5. Up to 8 conditions per place. [2021-10-15 19:54:59,279 INFO L132 encePairwiseOnDemand]: 30/38 looper letters, 5 selfloop transitions, 7 changer transitions 0/32 dead transitions. [2021-10-15 19:54:59,279 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 32 transitions, 88 flow [2021-10-15 19:54:59,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-15 19:54:59,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-15 19:54:59,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 157 transitions. [2021-10-15 19:54:59,296 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6885964912280702 [2021-10-15 19:54:59,298 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 157 transitions. [2021-10-15 19:54:59,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 157 transitions. [2021-10-15 19:54:59,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:54:59,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 157 transitions. [2021-10-15 19:54:59,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 26.166666666666668) internal successors, (157), 6 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:54:59,314 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:54:59,315 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:54:59,318 INFO L186 Difference]: Start difference. First operand has 27 places, 33 transitions, 66 flow. Second operand 6 states and 157 transitions. [2021-10-15 19:54:59,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 32 transitions, 88 flow [2021-10-15 19:54:59,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 32 transitions, 88 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-15 19:54:59,326 INFO L242 Difference]: Finished difference. Result has 32 places, 32 transitions, 78 flow [2021-10-15 19:54:59,328 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=78, PETRI_PLACES=32, PETRI_TRANSITIONS=32} [2021-10-15 19:54:59,330 INFO L334 CegarLoopForPetriNet]: 27 programPoint places, 5 predicate places. [2021-10-15 19:54:59,330 INFO L470 AbstractCegarLoop]: Abstraction has has 32 places, 32 transitions, 78 flow [2021-10-15 19:54:59,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:54:59,331 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:54:59,331 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:54:59,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-15 19:54:59,332 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:54:59,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:54:59,334 INFO L82 PathProgramCache]: Analyzing trace with hash -541613126, now seen corresponding path program 1 times [2021-10-15 19:54:59,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:54:59,335 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627747853] [2021-10-15 19:54:59,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:54:59,335 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:54:59,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:54:59,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:54:59,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:54:59,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627747853] [2021-10-15 19:54:59,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627747853] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:54:59,462 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:54:59,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-15 19:54:59,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025709034] [2021-10-15 19:54:59,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-15 19:54:59,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:54:59,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-15 19:54:59,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-15 19:54:59,472 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 38 [2021-10-15 19:54:59,474 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 32 transitions, 78 flow. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:54:59,474 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:54:59,475 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 38 [2021-10-15 19:54:59,476 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:54:59,613 INFO L129 PetriNetUnfolder]: 5/31 cut-off events. [2021-10-15 19:54:59,613 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:54:59,614 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 31 events. 5/31 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 16 event pairs, 0 based on Foata normal form. 1/27 useless extension candidates. Maximal degree in co-relation 29. Up to 9 conditions per place. [2021-10-15 19:54:59,614 INFO L132 encePairwiseOnDemand]: 30/38 looper letters, 9 selfloop transitions, 7 changer transitions 0/31 dead transitions. [2021-10-15 19:54:59,615 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 31 transitions, 108 flow [2021-10-15 19:54:59,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-15 19:54:59,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-15 19:54:59,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 137 transitions. [2021-10-15 19:54:59,618 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6008771929824561 [2021-10-15 19:54:59,619 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 137 transitions. [2021-10-15 19:54:59,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 137 transitions. [2021-10-15 19:54:59,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:54:59,620 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 137 transitions. [2021-10-15 19:54:59,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:54:59,626 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:54:59,626 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:54:59,626 INFO L186 Difference]: Start difference. First operand has 32 places, 32 transitions, 78 flow. Second operand 6 states and 137 transitions. [2021-10-15 19:54:59,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 31 transitions, 108 flow [2021-10-15 19:54:59,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 31 transitions, 94 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-10-15 19:54:59,629 INFO L242 Difference]: Finished difference. Result has 32 places, 31 transitions, 76 flow [2021-10-15 19:54:59,629 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=76, PETRI_PLACES=32, PETRI_TRANSITIONS=31} [2021-10-15 19:54:59,630 INFO L334 CegarLoopForPetriNet]: 27 programPoint places, 5 predicate places. [2021-10-15 19:54:59,630 INFO L470 AbstractCegarLoop]: Abstraction has has 32 places, 31 transitions, 76 flow [2021-10-15 19:54:59,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:54:59,630 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:54:59,630 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] [2021-10-15 19:54:59,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-15 19:54:59,631 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:54:59,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:54:59,631 INFO L82 PathProgramCache]: Analyzing trace with hash 150876809, now seen corresponding path program 1 times [2021-10-15 19:54:59,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:54:59,632 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877495982] [2021-10-15 19:54:59,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:54:59,632 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:54:59,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:54:59,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:54:59,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:54:59,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877495982] [2021-10-15 19:54:59,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877495982] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:54:59,739 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:54:59,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 19:54:59,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723779276] [2021-10-15 19:54:59,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-15 19:54:59,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:54:59,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 19:54:59,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 19:54:59,742 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 38 [2021-10-15 19:54:59,743 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 31 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:54:59,743 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:54:59,743 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 38 [2021-10-15 19:54:59,743 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:54:59,782 INFO L129 PetriNetUnfolder]: 5/37 cut-off events. [2021-10-15 19:54:59,782 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:54:59,782 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 37 events. 5/37 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 1/33 useless extension candidates. Maximal degree in co-relation 30. Up to 4 conditions per place. [2021-10-15 19:54:59,783 INFO L132 encePairwiseOnDemand]: 36/38 looper letters, 3 selfloop transitions, 0 changer transitions 7/31 dead transitions. [2021-10-15 19:54:59,783 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 31 transitions, 84 flow [2021-10-15 19:54:59,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 19:54:59,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-15 19:54:59,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 101 transitions. [2021-10-15 19:54:59,787 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8859649122807017 [2021-10-15 19:54:59,789 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 101 transitions. [2021-10-15 19:54:59,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 101 transitions. [2021-10-15 19:54:59,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:54:59,791 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 101 transitions. [2021-10-15 19:54:59,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:54:59,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:54:59,793 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:54:59,794 INFO L186 Difference]: Start difference. First operand has 32 places, 31 transitions, 76 flow. Second operand 3 states and 101 transitions. [2021-10-15 19:54:59,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 31 transitions, 84 flow [2021-10-15 19:54:59,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 31 transitions, 70 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-10-15 19:54:59,797 INFO L242 Difference]: Finished difference. Result has 30 places, 24 transitions, 50 flow [2021-10-15 19:54:59,797 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=30, PETRI_TRANSITIONS=24} [2021-10-15 19:54:59,798 INFO L334 CegarLoopForPetriNet]: 27 programPoint places, 3 predicate places. [2021-10-15 19:54:59,798 INFO L470 AbstractCegarLoop]: Abstraction has has 30 places, 24 transitions, 50 flow [2021-10-15 19:54:59,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:54:59,799 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:54:59,799 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] [2021-10-15 19:54:59,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-15 19:54:59,800 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:54:59,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:54:59,801 INFO L82 PathProgramCache]: Analyzing trace with hash -271300543, now seen corresponding path program 1 times [2021-10-15 19:54:59,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:54:59,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727798441] [2021-10-15 19:54:59,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:54:59,802 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:54:59,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:54:59,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:54:59,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:54:59,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727798441] [2021-10-15 19:54:59,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727798441] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:54:59,904 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:54:59,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-15 19:54:59,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956166001] [2021-10-15 19:54:59,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-15 19:54:59,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:54:59,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-15 19:54:59,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-15 19:54:59,909 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 38 [2021-10-15 19:54:59,909 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 24 transitions, 50 flow. Second operand has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:54:59,910 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:54:59,910 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 38 [2021-10-15 19:54:59,910 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:54:59,977 INFO L129 PetriNetUnfolder]: 0/11 cut-off events. [2021-10-15 19:54:59,978 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:54:59,978 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25 conditions, 11 events. 0/11 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 1/12 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-10-15 19:54:59,979 INFO L132 encePairwiseOnDemand]: 29/38 looper letters, 0 selfloop transitions, 0 changer transitions 11/11 dead transitions. [2021-10-15 19:54:59,979 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 11 transitions, 42 flow [2021-10-15 19:54:59,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-15 19:54:59,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-15 19:54:59,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 161 transitions. [2021-10-15 19:54:59,981 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.706140350877193 [2021-10-15 19:54:59,982 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 161 transitions. [2021-10-15 19:54:59,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 161 transitions. [2021-10-15 19:54:59,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:54:59,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 161 transitions. [2021-10-15 19:54:59,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:54:59,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:54:59,987 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:54:59,987 INFO L186 Difference]: Start difference. First operand has 30 places, 24 transitions, 50 flow. Second operand 6 states and 161 transitions. [2021-10-15 19:54:59,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 11 transitions, 42 flow [2021-10-15 19:54:59,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 11 transitions, 42 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-15 19:54:59,989 INFO L242 Difference]: Finished difference. Result has 19 places, 0 transitions, 0 flow [2021-10-15 19:54:59,989 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=22, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=19, PETRI_TRANSITIONS=0} [2021-10-15 19:54:59,989 INFO L334 CegarLoopForPetriNet]: 27 programPoint places, -8 predicate places. [2021-10-15 19:54:59,990 INFO L470 AbstractCegarLoop]: Abstraction has has 19 places, 0 transitions, 0 flow [2021-10-15 19:54:59,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:54:59,993 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:54:59,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-15 19:55:00,000 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-15 19:55:00,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 07:55:00 BoogieIcfgContainer [2021-10-15 19:55:00,006 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-15 19:55:00,006 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:55:00,007 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:55:00,007 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:55:00,008 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:54:58" (3/4) ... [2021-10-15 19:55:00,011 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-15 19:55:00,026 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-10-15 19:55:00,027 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-15 19:55:00,028 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-15 19:55:00,028 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-15 19:55:00,094 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed310e7-c61d-483d-bcbe-fcb6e59571b5/bin/uautomizer-hJ6jxDFKc3/witness.graphml [2021-10-15 19:55:00,094 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:55:00,096 INFO L168 Benchmark]: Toolchain (without parser) took 2534.05 ms. Allocated memory was 94.4 MB in the beginning and 125.8 MB in the end (delta: 31.5 MB). Free memory was 72.8 MB in the beginning and 83.7 MB in the end (delta: -10.9 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB. [2021-10-15 19:55:00,097 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 94.4 MB. Free memory was 70.7 MB in the beginning and 70.6 MB in the end (delta: 53.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:55:00,098 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.29 ms. Allocated memory is still 94.4 MB. Free memory was 72.6 MB in the beginning and 62.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-15 19:55:00,099 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.90 ms. Allocated memory is still 94.4 MB. Free memory was 62.1 MB in the beginning and 60.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:55:00,099 INFO L168 Benchmark]: Boogie Preprocessor took 33.49 ms. Allocated memory is still 94.4 MB. Free memory was 60.2 MB in the beginning and 58.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:55:00,100 INFO L168 Benchmark]: RCFGBuilder took 691.64 ms. Allocated memory is still 94.4 MB. Free memory was 58.9 MB in the beginning and 45.0 MB in the end (delta: 13.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-15 19:55:00,101 INFO L168 Benchmark]: TraceAbstraction took 1374.42 ms. Allocated memory was 94.4 MB in the beginning and 125.8 MB in the end (delta: 31.5 MB). Free memory was 44.6 MB in the beginning and 87.9 MB in the end (delta: -43.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:55:00,101 INFO L168 Benchmark]: Witness Printer took 87.82 ms. Allocated memory is still 125.8 MB. Free memory was 87.9 MB in the beginning and 83.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-15 19:55:00,105 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 94.4 MB. Free memory was 70.7 MB in the beginning and 70.6 MB in the end (delta: 53.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 272.29 ms. Allocated memory is still 94.4 MB. Free memory was 72.6 MB in the beginning and 62.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.90 ms. Allocated memory is still 94.4 MB. Free memory was 62.1 MB in the beginning and 60.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.49 ms. Allocated memory is still 94.4 MB. Free memory was 60.2 MB in the beginning and 58.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 691.64 ms. Allocated memory is still 94.4 MB. Free memory was 58.9 MB in the beginning and 45.0 MB in the end (delta: 13.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1374.42 ms. Allocated memory was 94.4 MB in the beginning and 125.8 MB in the end (delta: 31.5 MB). Free memory was 44.6 MB in the beginning and 87.9 MB in the end (delta: -43.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 87.82 ms. Allocated memory is still 125.8 MB. Free memory was 87.9 MB in the beginning and 83.7 MB in the end (delta: 4.2 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 8]: 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 CFG has 1 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 5.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1244.4ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 494.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 55.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 12 SDtfs, 64 SDslu, 8 SDs, 0 SdLazy, 61 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 130.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 153.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=1, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 25.1ms SsaConstructionTime, 131.1ms SatisfiabilityAnalysisTime, 330.7ms InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 103 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-15 19:55:00,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed310e7-c61d-483d-bcbe-fcb6e59571b5/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...