./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0684a.c --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_40ce9765-dd32-40f4-b9dd-e330bae82e95/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce9765-dd32-40f4-b9dd-e330bae82e95/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_40ce9765-dd32-40f4-b9dd-e330bae82e95/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce9765-dd32-40f4-b9dd-e330bae82e95/bin/uautomizer-hJ6jxDFKc3/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0684a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce9765-dd32-40f4-b9dd-e330bae82e95/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_40ce9765-dd32-40f4-b9dd-e330bae82e95/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 ce41e341839c3e0f842e110b5c525e7dc81a9ade ....................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce9765-dd32-40f4-b9dd-e330bae82e95/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce9765-dd32-40f4-b9dd-e330bae82e95/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_40ce9765-dd32-40f4-b9dd-e330bae82e95/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce9765-dd32-40f4-b9dd-e330bae82e95/bin/uautomizer-hJ6jxDFKc3/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0684a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce9765-dd32-40f4-b9dd-e330bae82e95/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce9765-dd32-40f4-b9dd-e330bae82e95/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 ce41e341839c3e0f842e110b5c525e7dc81a9ade ............................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 19:39:05,681 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:39:05,685 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:39:05,753 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:39:05,754 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:39:05,759 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:39:05,761 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:39:05,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:39:05,770 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:39:05,777 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:39:05,778 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:39:05,781 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:39:05,781 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:39:05,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:39:05,786 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:39:05,796 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:39:05,798 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:39:05,799 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:39:05,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:39:05,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:39:05,812 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:39:05,813 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:39:05,817 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:39:05,818 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:39:05,828 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:39:05,828 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:39:05,829 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:39:05,831 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:39:05,832 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:39:05,834 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:39:05,834 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:39:05,836 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:39:05,838 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:39:05,838 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:39:05,840 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:39:05,840 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:39:05,841 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:39:05,841 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:39:05,841 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:39:05,843 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:39:05,843 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:39:05,844 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce9765-dd32-40f4-b9dd-e330bae82e95/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-15 19:39:05,873 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:39:05,874 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:39:05,874 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:39:05,874 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:39:05,875 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:39:05,876 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:39:05,876 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:39:05,876 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:39:05,876 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 19:39:05,877 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:39:05,877 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 19:39:05,877 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:39:05,877 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-15 19:39:05,877 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-15 19:39:05,878 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-15 19:39:05,878 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 19:39:05,878 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:39:05,878 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:39:05,878 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-15 19:39:05,879 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:39:05,879 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:39:05,879 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-15 19:39:05,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:39:05,880 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:39:05,880 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-15 19:39:05,880 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-15 19:39:05,880 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:39:05,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-15 19:39:05,881 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-15 19:39:05,881 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-15 19:39:05,881 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-15 19:39:05,881 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:39:05,882 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_40ce9765-dd32-40f4-b9dd-e330bae82e95/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce9765-dd32-40f4-b9dd-e330bae82e95/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce41e341839c3e0f842e110b5c525e7dc81a9ade [2021-10-15 19:39:06,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:39:06,240 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:39:06,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:39:06,244 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:39:06,246 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:39:06,247 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce9765-dd32-40f4-b9dd-e330bae82e95/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/float-newlib/double_req_bl_0684a.c [2021-10-15 19:39:06,342 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce9765-dd32-40f4-b9dd-e330bae82e95/bin/uautomizer-hJ6jxDFKc3/data/5eb9da0a0/68cac368baea40dfa2c91b267dc40f5e/FLAG97dc6e349 [2021-10-15 19:39:06,914 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:39:06,914 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce9765-dd32-40f4-b9dd-e330bae82e95/sv-benchmarks/c/float-newlib/double_req_bl_0684a.c [2021-10-15 19:39:06,923 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce9765-dd32-40f4-b9dd-e330bae82e95/bin/uautomizer-hJ6jxDFKc3/data/5eb9da0a0/68cac368baea40dfa2c91b267dc40f5e/FLAG97dc6e349 [2021-10-15 19:39:07,239 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce9765-dd32-40f4-b9dd-e330bae82e95/bin/uautomizer-hJ6jxDFKc3/data/5eb9da0a0/68cac368baea40dfa2c91b267dc40f5e [2021-10-15 19:39:07,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:39:07,245 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:39:07,247 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:39:07,247 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:39:07,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:39:07,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:39:07" (1/1) ... [2021-10-15 19:39:07,253 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a96070d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:39:07, skipping insertion in model container [2021-10-15 19:39:07,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:39:07" (1/1) ... [2021-10-15 19:39:07,267 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:39:07,328 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:39:07,589 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_40ce9765-dd32-40f4-b9dd-e330bae82e95/sv-benchmarks/c/float-newlib/double_req_bl_0684a.c[6889,6902] [2021-10-15 19:39:07,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:39:07,602 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:39:07,666 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_40ce9765-dd32-40f4-b9dd-e330bae82e95/sv-benchmarks/c/float-newlib/double_req_bl_0684a.c[6889,6902] [2021-10-15 19:39:07,666 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:39:07,685 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:39:07,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:39:07 WrapperNode [2021-10-15 19:39:07,685 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:39:07,687 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:39:07,687 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:39:07,687 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:39:07,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:39:07" (1/1) ... [2021-10-15 19:39:07,709 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:39:07" (1/1) ... [2021-10-15 19:39:07,773 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:39:07,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:39:07,779 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:39:07,779 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:39:07,789 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:39:07" (1/1) ... [2021-10-15 19:39:07,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:39:07" (1/1) ... [2021-10-15 19:39:07,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:39:07" (1/1) ... [2021-10-15 19:39:07,820 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:39:07" (1/1) ... [2021-10-15 19:39:07,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:39:07" (1/1) ... [2021-10-15 19:39:07,861 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:39:07" (1/1) ... [2021-10-15 19:39:07,865 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:39:07" (1/1) ... [2021-10-15 19:39:07,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:39:07,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:39:07,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:39:07,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:39:07,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:39:07" (1/1) ... [2021-10-15 19:39:07,894 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:39:07,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce9765-dd32-40f4-b9dd-e330bae82e95/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:39:07,922 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce9765-dd32-40f4-b9dd-e330bae82e95/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-15 19:39:07,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce9765-dd32-40f4-b9dd-e330bae82e95/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-15 19:39:07,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-15 19:39:07,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 19:39:07,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-15 19:39:07,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-15 19:39:07,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-15 19:39:07,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:39:07,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:39:07,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-15 19:39:07,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-15 19:39:07,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-15 19:39:08,835 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:39:08,835 INFO L299 CfgBuilder]: Removed 52 assume(true) statements. [2021-10-15 19:39:08,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:39:08 BoogieIcfgContainer [2021-10-15 19:39:08,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:39:08,866 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-15 19:39:08,866 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-15 19:39:08,870 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-15 19:39:08,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 07:39:07" (1/3) ... [2021-10-15 19:39:08,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@448737a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:39:08, skipping insertion in model container [2021-10-15 19:39:08,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:39:07" (2/3) ... [2021-10-15 19:39:08,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@448737a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:39:08, skipping insertion in model container [2021-10-15 19:39:08,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:39:08" (3/3) ... [2021-10-15 19:39:08,873 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0684a.c [2021-10-15 19:39:08,879 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-15 19:39:08,879 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-15 19:39:08,934 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-15 19:39:08,941 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 19:39:08,942 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-15 19:39:08,971 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 124 places, 207 transitions, 414 flow [2021-10-15 19:39:09,055 INFO L129 PetriNetUnfolder]: 84/207 cut-off events. [2021-10-15 19:39:09,055 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:39:09,057 INFO L84 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 207 events. 84/207 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 506 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 0. Up to 20 conditions per place. [2021-10-15 19:39:09,058 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 207 transitions, 414 flow [2021-10-15 19:39:09,068 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 201 transitions, 402 flow [2021-10-15 19:39:09,077 INFO L129 PetriNetUnfolder]: 13/45 cut-off events. [2021-10-15 19:39:09,077 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:39:09,078 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:39:09,078 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:39:09,079 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:39:09,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:39:09,085 INFO L82 PathProgramCache]: Analyzing trace with hash -617567418, now seen corresponding path program 1 times [2021-10-15 19:39:09,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:39:09,093 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887058478] [2021-10-15 19:39:09,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:39:09,095 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:39:09,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:39:09,364 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 19:39:09,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:39:09,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887058478] [2021-10-15 19:39:09,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887058478] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:39:09,368 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:39:09,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-15 19:39:09,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453814314] [2021-10-15 19:39:09,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-15 19:39:09,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:39:09,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-15 19:39:09,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-15 19:39:09,405 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 207 [2021-10-15 19:39:09,412 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 201 transitions, 402 flow. Second operand has 2 states, 2 states have (on average 175.5) internal successors, (351), 2 states have internal predecessors, (351), 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 19:39:09,412 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:39:09,413 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 207 [2021-10-15 19:39:09,415 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:39:09,485 INFO L129 PetriNetUnfolder]: 50/169 cut-off events. [2021-10-15 19:39:09,486 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:39:09,489 INFO L84 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 169 events. 50/169 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 405 event pairs, 0 based on Foata normal form. 32/151 useless extension candidates. Maximal degree in co-relation 169. Up to 20 conditions per place. [2021-10-15 19:39:09,494 INFO L132 encePairwiseOnDemand]: 175/207 looper letters, 0 selfloop transitions, 0 changer transitions 0/169 dead transitions. [2021-10-15 19:39:09,494 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 169 transitions, 338 flow [2021-10-15 19:39:09,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-15 19:39:09,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-10-15 19:39:09,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 380 transitions. [2021-10-15 19:39:09,519 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9178743961352657 [2021-10-15 19:39:09,520 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 380 transitions. [2021-10-15 19:39:09,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 380 transitions. [2021-10-15 19:39:09,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:39:09,529 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 380 transitions. [2021-10-15 19:39:09,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 190.0) internal successors, (380), 2 states have internal predecessors, (380), 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 19:39:09,547 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 207.0) internal successors, (621), 3 states have internal predecessors, (621), 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 19:39:09,548 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 207.0) internal successors, (621), 3 states have internal predecessors, (621), 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 19:39:09,551 INFO L186 Difference]: Start difference. First operand has 120 places, 201 transitions, 402 flow. Second operand 2 states and 380 transitions. [2021-10-15 19:39:09,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 169 transitions, 338 flow [2021-10-15 19:39:09,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 169 transitions, 338 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-15 19:39:09,570 INFO L242 Difference]: Finished difference. Result has 121 places, 169 transitions, 338 flow [2021-10-15 19:39:09,573 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=338, PETRI_PLACES=121, PETRI_TRANSITIONS=169} [2021-10-15 19:39:09,575 INFO L334 CegarLoopForPetriNet]: 120 programPoint places, 1 predicate places. [2021-10-15 19:39:09,576 INFO L470 AbstractCegarLoop]: Abstraction has has 121 places, 169 transitions, 338 flow [2021-10-15 19:39:09,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 175.5) internal successors, (351), 2 states have internal predecessors, (351), 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 19:39:09,577 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:39:09,578 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:39:09,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-15 19:39:09,579 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:39:09,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:39:09,580 INFO L82 PathProgramCache]: Analyzing trace with hash -397782484, now seen corresponding path program 1 times [2021-10-15 19:39:09,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:39:09,581 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123033673] [2021-10-15 19:39:09,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:39:09,582 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:39:09,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:39:09,763 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 19:39:09,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:39:09,764 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123033673] [2021-10-15 19:39:09,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123033673] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:39:09,764 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:39:09,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 19:39:09,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208228463] [2021-10-15 19:39:09,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-15 19:39:09,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:39:09,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 19:39:09,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 19:39:09,773 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 207 [2021-10-15 19:39:09,775 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 169 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 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 19:39:09,776 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:39:09,776 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 207 [2021-10-15 19:39:09,776 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:39:09,831 INFO L129 PetriNetUnfolder]: 49/169 cut-off events. [2021-10-15 19:39:09,831 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:39:09,834 INFO L84 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 169 events. 49/169 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 397 event pairs, 0 based on Foata normal form. 1/120 useless extension candidates. Maximal degree in co-relation 175. Up to 20 conditions per place. [2021-10-15 19:39:09,835 INFO L132 encePairwiseOnDemand]: 205/207 looper letters, 5 selfloop transitions, 0 changer transitions 1/169 dead transitions. [2021-10-15 19:39:09,836 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 169 transitions, 350 flow [2021-10-15 19:39:09,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 19:39:09,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-15 19:39:09,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 508 transitions. [2021-10-15 19:39:09,845 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8180354267310789 [2021-10-15 19:39:09,845 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 508 transitions. [2021-10-15 19:39:09,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 508 transitions. [2021-10-15 19:39:09,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:39:09,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 508 transitions. [2021-10-15 19:39:09,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 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 19:39:09,855 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 207.0) internal successors, (828), 4 states have internal predecessors, (828), 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 19:39:09,863 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 207.0) internal successors, (828), 4 states have internal predecessors, (828), 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 19:39:09,863 INFO L186 Difference]: Start difference. First operand has 121 places, 169 transitions, 338 flow. Second operand 3 states and 508 transitions. [2021-10-15 19:39:09,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 169 transitions, 350 flow [2021-10-15 19:39:09,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 169 transitions, 350 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-15 19:39:09,877 INFO L242 Difference]: Finished difference. Result has 124 places, 168 transitions, 338 flow [2021-10-15 19:39:09,878 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=207, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=338, PETRI_PLACES=124, PETRI_TRANSITIONS=168} [2021-10-15 19:39:09,878 INFO L334 CegarLoopForPetriNet]: 120 programPoint places, 4 predicate places. [2021-10-15 19:39:09,879 INFO L470 AbstractCegarLoop]: Abstraction has has 124 places, 168 transitions, 338 flow [2021-10-15 19:39:09,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 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 19:39:09,880 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:39:09,880 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 19:39:09,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-15 19:39:09,880 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:39:09,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:39:09,886 INFO L82 PathProgramCache]: Analyzing trace with hash -1006577033, now seen corresponding path program 1 times [2021-10-15 19:39:09,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:39:09,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602999024] [2021-10-15 19:39:09,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:39:09,887 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:39:10,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:39:10,136 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:39:10,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:39:10,330 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:39:10,331 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-15 19:39:10,332 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:39:10,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-15 19:39:10,340 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-15 19:39:10,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 07:39:10 BoogieIcfgContainer [2021-10-15 19:39:10,433 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-15 19:39:10,435 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:39:10,435 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:39:10,435 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:39:10,436 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:39:08" (3/4) ... [2021-10-15 19:39:10,439 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-15 19:39:10,440 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:39:10,443 INFO L168 Benchmark]: Toolchain (without parser) took 3196.07 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 65.7 MB in the beginning and 56.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 31.2 MB. Max. memory is 16.1 GB. [2021-10-15 19:39:10,445 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 102.8 MB. Free memory was 75.8 MB in the beginning and 75.8 MB in the end (delta: 29.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:39:10,450 INFO L168 Benchmark]: CACSL2BoogieTranslator took 439.23 ms. Allocated memory is still 102.8 MB. Free memory was 65.7 MB in the beginning and 70.6 MB in the end (delta: -4.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-15 19:39:10,451 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.92 ms. Allocated memory is still 102.8 MB. Free memory was 70.6 MB in the beginning and 67.0 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-15 19:39:10,452 INFO L168 Benchmark]: Boogie Preprocessor took 92.50 ms. Allocated memory is still 102.8 MB. Free memory was 67.0 MB in the beginning and 63.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:39:10,452 INFO L168 Benchmark]: RCFGBuilder took 965.54 ms. Allocated memory is still 102.8 MB. Free memory was 63.4 MB in the beginning and 74.1 MB in the end (delta: -10.7 MB). Peak memory consumption was 34.0 MB. Max. memory is 16.1 GB. [2021-10-15 19:39:10,454 INFO L168 Benchmark]: TraceAbstraction took 1567.47 ms. Allocated memory is still 123.7 MB. Free memory was 97.1 MB in the beginning and 57.1 MB in the end (delta: 39.9 MB). Peak memory consumption was 38.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:39:10,454 INFO L168 Benchmark]: Witness Printer took 4.99 ms. Allocated memory is still 123.7 MB. Free memory was 57.1 MB in the beginning and 56.3 MB in the end (delta: 813.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:39:10,457 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 102.8 MB. Free memory was 75.8 MB in the beginning and 75.8 MB in the end (delta: 29.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 439.23 ms. Allocated memory is still 102.8 MB. Free memory was 65.7 MB in the beginning and 70.6 MB in the end (delta: -4.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 91.92 ms. Allocated memory is still 102.8 MB. Free memory was 70.6 MB in the beginning and 67.0 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 92.50 ms. Allocated memory is still 102.8 MB. Free memory was 67.0 MB in the beginning and 63.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 965.54 ms. Allocated memory is still 102.8 MB. Free memory was 63.4 MB in the beginning and 74.1 MB in the end (delta: -10.7 MB). Peak memory consumption was 34.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1567.47 ms. Allocated memory is still 123.7 MB. Free memory was 97.1 MB in the beginning and 57.1 MB in the end (delta: 39.9 MB). Peak memory consumption was 38.5 MB. Max. memory is 16.1 GB. * Witness Printer took 4.99 ms. Allocated memory is still 123.7 MB. Free memory was 57.1 MB in the beginning and 56.3 MB in the end (delta: 813.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 288]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryDOUBLEComparisonOperation at line 287. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L278] double x = __VERIFIER_nondet_double(); [L279] double y = 1.0 / 0.0; [L262] __int32_t hx; VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L264] ieee_double_shape_type gh_u; [L265] gh_u.value = (x) [L266] EXPR gh_u.parts.msw [L266] (hx) = gh_u.parts.msw [L268] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L282] isfinite_double(x) && isinf_double(y) [L248] __int32_t hx, lx; VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L250] ieee_double_shape_type ew_u; [L251] ew_u.value = (x) [L252] EXPR ew_u.parts.msw [L252] (hx) = ew_u.parts.msw [L253] EXPR ew_u.parts.lsw [L253] (lx) = ew_u.parts.lsw [L255] hx &= 0x7fffffff [L256] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L257] hx = 0x7ff00000 - hx [L258] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L282] isfinite_double(x) && isinf_double(y) VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L282] COND TRUE isfinite_double(x) && isinf_double(y) [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L284] double res = __ieee754_atan2(y, x); [L287] COND TRUE res != pi_o_2 VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L288] reach_error() VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 124 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 8.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1409.7ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 292.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 126.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 6 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=402occurred in iteration=0, InterpolantAutomatonStates: 5, 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: 40.2ms SsaConstructionTime, 398.2ms SatisfiabilityAnalysisTime, 178.6ms InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-15 19:39:10,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce9765-dd32-40f4-b9dd-e330bae82e95/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-15 19:39:13,195 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:39:13,198 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:39:13,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:39:13,232 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:39:13,234 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:39:13,235 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:39:13,238 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:39:13,240 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:39:13,241 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:39:13,243 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:39:13,244 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:39:13,245 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:39:13,246 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:39:13,248 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:39:13,249 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:39:13,250 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:39:13,251 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:39:13,253 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:39:13,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:39:13,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:39:13,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:39:13,267 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:39:13,270 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:39:13,280 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:39:13,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:39:13,283 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:39:13,284 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:39:13,284 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:39:13,285 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:39:13,286 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:39:13,287 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:39:13,287 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:39:13,288 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:39:13,289 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:39:13,290 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:39:13,291 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:39:13,291 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:39:13,292 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:39:13,293 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:39:13,293 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:39:13,304 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce9765-dd32-40f4-b9dd-e330bae82e95/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-15 19:39:13,350 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:39:13,350 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:39:13,351 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:39:13,351 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:39:13,352 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:39:13,352 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:39:13,352 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:39:13,353 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:39:13,353 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 19:39:13,353 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 19:39:13,353 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:39:13,353 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-15 19:39:13,354 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-15 19:39:13,354 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-15 19:39:13,354 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-15 19:39:13,354 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-15 19:39:13,354 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 19:39:13,355 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:39:13,355 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:39:13,355 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-15 19:39:13,355 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:39:13,355 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:39:13,356 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-15 19:39:13,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:39:13,356 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:39:13,356 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-15 19:39:13,356 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-15 19:39:13,357 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-15 19:39:13,357 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-15 19:39:13,357 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-15 19:39:13,357 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-15 19:39:13,357 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-15 19:39:13,358 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:39:13,358 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-15 19:39:13,358 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_40ce9765-dd32-40f4-b9dd-e330bae82e95/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce9765-dd32-40f4-b9dd-e330bae82e95/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce41e341839c3e0f842e110b5c525e7dc81a9ade [2021-10-15 19:39:13,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:39:13,857 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:39:13,861 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:39:13,865 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:39:13,866 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:39:13,867 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce9765-dd32-40f4-b9dd-e330bae82e95/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/float-newlib/double_req_bl_0684a.c [2021-10-15 19:39:13,946 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce9765-dd32-40f4-b9dd-e330bae82e95/bin/uautomizer-hJ6jxDFKc3/data/3e860feb1/40526ca128614d6b81bf715d79f8a39e/FLAG91c4feec1 [2021-10-15 19:39:14,677 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:39:14,679 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce9765-dd32-40f4-b9dd-e330bae82e95/sv-benchmarks/c/float-newlib/double_req_bl_0684a.c [2021-10-15 19:39:14,692 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce9765-dd32-40f4-b9dd-e330bae82e95/bin/uautomizer-hJ6jxDFKc3/data/3e860feb1/40526ca128614d6b81bf715d79f8a39e/FLAG91c4feec1 [2021-10-15 19:39:14,962 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce9765-dd32-40f4-b9dd-e330bae82e95/bin/uautomizer-hJ6jxDFKc3/data/3e860feb1/40526ca128614d6b81bf715d79f8a39e [2021-10-15 19:39:14,965 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:39:14,967 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:39:14,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:39:14,969 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:39:14,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:39:14,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:39:14" (1/1) ... [2021-10-15 19:39:14,976 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19e1506b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:39:14, skipping insertion in model container [2021-10-15 19:39:14,976 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:39:14" (1/1) ... [2021-10-15 19:39:14,984 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:39:15,014 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:39:15,249 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_40ce9765-dd32-40f4-b9dd-e330bae82e95/sv-benchmarks/c/float-newlib/double_req_bl_0684a.c[6889,6902] [2021-10-15 19:39:15,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:39:15,308 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:39:15,422 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_40ce9765-dd32-40f4-b9dd-e330bae82e95/sv-benchmarks/c/float-newlib/double_req_bl_0684a.c[6889,6902] [2021-10-15 19:39:15,423 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:39:15,451 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:39:15,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:39:15 WrapperNode [2021-10-15 19:39:15,452 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:39:15,453 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:39:15,454 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:39:15,454 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:39:15,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:39:15" (1/1) ... [2021-10-15 19:39:15,482 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:39:15" (1/1) ... [2021-10-15 19:39:15,532 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:39:15,533 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:39:15,533 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:39:15,533 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:39:15,543 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:39:15" (1/1) ... [2021-10-15 19:39:15,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:39:15" (1/1) ... [2021-10-15 19:39:15,554 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:39:15" (1/1) ... [2021-10-15 19:39:15,554 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:39:15" (1/1) ... [2021-10-15 19:39:15,589 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:39:15" (1/1) ... [2021-10-15 19:39:15,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:39:15" (1/1) ... [2021-10-15 19:39:15,636 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:39:15" (1/1) ... [2021-10-15 19:39:15,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:39:15,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:39:15,645 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:39:15,645 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:39:15,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:39:15" (1/1) ... [2021-10-15 19:39:15,669 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:39:15,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce9765-dd32-40f4-b9dd-e330bae82e95/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:39:15,701 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce9765-dd32-40f4-b9dd-e330bae82e95/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-15 19:39:15,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce9765-dd32-40f4-b9dd-e330bae82e95/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-15 19:39:15,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-15 19:39:15,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-15 19:39:15,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-15 19:39:15,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 19:39:15,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-10-15 19:39:15,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-15 19:39:15,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:39:15,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:39:15,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-15 19:39:15,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-15 19:39:56,127 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:39:56,129 INFO L299 CfgBuilder]: Removed 52 assume(true) statements. [2021-10-15 19:39:56,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:39:56 BoogieIcfgContainer [2021-10-15 19:39:56,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:39:56,136 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-15 19:39:56,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-15 19:39:56,140 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-15 19:39:56,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 07:39:14" (1/3) ... [2021-10-15 19:39:56,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4502318d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:39:56, skipping insertion in model container [2021-10-15 19:39:56,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:39:15" (2/3) ... [2021-10-15 19:39:56,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4502318d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:39:56, skipping insertion in model container [2021-10-15 19:39:56,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:39:56" (3/3) ... [2021-10-15 19:39:56,148 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0684a.c [2021-10-15 19:39:56,155 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-15 19:39:56,156 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-15 19:39:56,240 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-15 19:39:56,252 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 19:39:56,252 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-15 19:39:56,283 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 124 places, 207 transitions, 414 flow [2021-10-15 19:39:56,398 INFO L129 PetriNetUnfolder]: 84/207 cut-off events. [2021-10-15 19:39:56,401 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:39:56,407 INFO L84 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 207 events. 84/207 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 506 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 0. Up to 20 conditions per place. [2021-10-15 19:39:56,407 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 207 transitions, 414 flow [2021-10-15 19:39:56,426 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 201 transitions, 402 flow [2021-10-15 19:39:56,450 INFO L129 PetriNetUnfolder]: 13/45 cut-off events. [2021-10-15 19:39:56,450 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:39:56,451 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:39:56,451 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:39:56,452 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:39:56,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:39:56,461 INFO L82 PathProgramCache]: Analyzing trace with hash -617567418, now seen corresponding path program 1 times [2021-10-15 19:39:56,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-15 19:39:56,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [870628269] [2021-10-15 19:39:56,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:39:56,483 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-15 19:39:56,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce9765-dd32-40f4-b9dd-e330bae82e95/bin/uautomizer-hJ6jxDFKc3/mathsat [2021-10-15 19:39:56,487 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce9765-dd32-40f4-b9dd-e330bae82e95/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-15 19:39:56,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce9765-dd32-40f4-b9dd-e330bae82e95/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-15 19:39:56,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce9765-dd32-40f4-b9dd-e330bae82e95/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-15 19:39:56,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce9765-dd32-40f4-b9dd-e330bae82e95/bin/uautomizer-hJ6jxDFKc3/mathsat -unsat_core_generation=3 [2021-10-15 19:39:56,844 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:232) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.logic.NoopScript.annotate(NoopScript.java:577) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertCodeBlocks.java:192) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertConjunctsOfCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertConjunctsOfCodeBlocks.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertConjunctsOfCodeBlocks.annotateAndAssertConjuncts(AnnotateAndAssertConjunctsOfCodeBlocks.java:135) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertConjunctsOfCodeBlocks.annotateAndAssertNonCall(AnnotateAndAssertConjunctsOfCodeBlocks.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:101) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:312) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:211) ... 31 more [2021-10-15 19:39:56,851 INFO L168 Benchmark]: Toolchain (without parser) took 41882.52 ms. Allocated memory was 67.1 MB in the beginning and 90.2 MB in the end (delta: 23.1 MB). Free memory was 48.9 MB in the beginning and 51.4 MB in the end (delta: -2.5 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. [2021-10-15 19:39:56,852 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 67.1 MB. Free memory is still 49.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:39:56,853 INFO L168 Benchmark]: CACSL2BoogieTranslator took 483.84 ms. Allocated memory is still 67.1 MB. Free memory was 48.7 MB in the beginning and 46.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-15 19:39:56,854 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.73 ms. Allocated memory is still 67.1 MB. Free memory was 46.5 MB in the beginning and 42.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-15 19:39:56,855 INFO L168 Benchmark]: Boogie Preprocessor took 110.94 ms. Allocated memory is still 67.1 MB. Free memory was 42.8 MB in the beginning and 39.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-15 19:39:56,856 INFO L168 Benchmark]: RCFGBuilder took 40488.93 ms. Allocated memory was 67.1 MB in the beginning and 90.2 MB in the end (delta: 23.1 MB). Free memory was 38.8 MB in the beginning and 66.7 MB in the end (delta: -27.8 MB). Peak memory consumption was 23.6 MB. Max. memory is 16.1 GB. [2021-10-15 19:39:56,857 INFO L168 Benchmark]: TraceAbstraction took 712.59 ms. Allocated memory is still 90.2 MB. Free memory was 66.2 MB in the beginning and 51.4 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-15 19:39:56,861 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 67.1 MB. Free memory is still 49.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 483.84 ms. Allocated memory is still 67.1 MB. Free memory was 48.7 MB in the beginning and 46.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 78.73 ms. Allocated memory is still 67.1 MB. Free memory was 46.5 MB in the beginning and 42.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 110.94 ms. Allocated memory is still 67.1 MB. Free memory was 42.8 MB in the beginning and 39.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 40488.93 ms. Allocated memory was 67.1 MB in the beginning and 90.2 MB in the end (delta: 23.1 MB). Free memory was 38.8 MB in the beginning and 66.7 MB in the end (delta: -27.8 MB). Peak memory consumption was 23.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 712.59 ms. Allocated memory is still 90.2 MB. Free memory was 66.2 MB in the beginning and 51.4 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:232) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-15 19:39:57,099 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce9765-dd32-40f4-b9dd-e330bae82e95/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-15 19:39:57,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40ce9765-dd32-40f4-b9dd-e330bae82e95/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...