./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/sine_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/sine_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX --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 3c9d4aa97272954ae32108b6910bcaa7825a2434a76b0876a3de03aaa87e2ff7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 08:40:16,019 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 08:40:16,022 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 08:40:16,085 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 08:40:16,086 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 08:40:16,092 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 08:40:16,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 08:40:16,101 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 08:40:16,104 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 08:40:16,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 08:40:16,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 08:40:16,119 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 08:40:16,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 08:40:16,124 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 08:40:16,128 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 08:40:16,135 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 08:40:16,139 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 08:40:16,140 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 08:40:16,143 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 08:40:16,149 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 08:40:16,153 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 08:40:16,155 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 08:40:16,159 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 08:40:16,160 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 08:40:16,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 08:40:16,172 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 08:40:16,173 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 08:40:16,176 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 08:40:16,177 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 08:40:16,179 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 08:40:16,180 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 08:40:16,181 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 08:40:16,184 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 08:40:16,185 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 08:40:16,186 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 08:40:16,187 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 08:40:16,188 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 08:40:16,188 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 08:40:16,188 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 08:40:16,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 08:40:16,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 08:40:16,192 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-09 08:40:16,226 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 08:40:16,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 08:40:16,227 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 08:40:16,227 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 08:40:16,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 08:40:16,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 08:40:16,229 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 08:40:16,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 08:40:16,229 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 08:40:16,230 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 08:40:16,230 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 08:40:16,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 08:40:16,230 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 08:40:16,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 08:40:16,231 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 08:40:16,231 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 08:40:16,231 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 08:40:16,231 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 08:40:16,232 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 08:40:16,232 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 08:40:16,232 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 08:40:16,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 08:40:16,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:40:16,233 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 08:40:16,233 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 08:40:16,233 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 08:40:16,234 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 08:40:16,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 08:40:16,234 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 08:40:16,234 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 08:40:16,235 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 08:40:16,235 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 08:40:16,235 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_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c9d4aa97272954ae32108b6910bcaa7825a2434a76b0876a3de03aaa87e2ff7 [2021-11-09 08:40:16,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 08:40:16,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 08:40:16,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 08:40:16,608 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 08:40:16,609 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 08:40:16,610 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/floats-cdfpl/sine_2.i [2021-11-09 08:40:16,706 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX/data/ede6b9ed2/a4936ca84c404b39bb7366d66c4552f5/FLAG319726c03 [2021-11-09 08:40:17,300 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 08:40:17,302 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/sv-benchmarks/c/floats-cdfpl/sine_2.i [2021-11-09 08:40:17,310 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX/data/ede6b9ed2/a4936ca84c404b39bb7366d66c4552f5/FLAG319726c03 [2021-11-09 08:40:17,637 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX/data/ede6b9ed2/a4936ca84c404b39bb7366d66c4552f5 [2021-11-09 08:40:17,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 08:40:17,645 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 08:40:17,650 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 08:40:17,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 08:40:17,654 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 08:40:17,656 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:40:17" (1/1) ... [2021-11-09 08:40:17,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@518216bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:17, skipping insertion in model container [2021-11-09 08:40:17,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:40:17" (1/1) ... [2021-11-09 08:40:17,669 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 08:40:17,687 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 08:40:17,906 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_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/sv-benchmarks/c/floats-cdfpl/sine_2.i[1143,1156] [2021-11-09 08:40:17,911 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:40:17,923 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 08:40:17,946 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_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/sv-benchmarks/c/floats-cdfpl/sine_2.i[1143,1156] [2021-11-09 08:40:17,947 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:40:17,965 INFO L208 MainTranslator]: Completed translation [2021-11-09 08:40:17,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:17 WrapperNode [2021-11-09 08:40:17,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 08:40:17,968 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 08:40:17,968 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 08:40:17,969 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 08:40:17,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:17" (1/1) ... [2021-11-09 08:40:17,989 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:17" (1/1) ... [2021-11-09 08:40:18,013 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 08:40:18,014 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 08:40:18,014 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 08:40:18,015 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 08:40:18,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:17" (1/1) ... [2021-11-09 08:40:18,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:17" (1/1) ... [2021-11-09 08:40:18,028 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:17" (1/1) ... [2021-11-09 08:40:18,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:17" (1/1) ... [2021-11-09 08:40:18,034 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:17" (1/1) ... [2021-11-09 08:40:18,037 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:17" (1/1) ... [2021-11-09 08:40:18,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:17" (1/1) ... [2021-11-09 08:40:18,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 08:40:18,042 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 08:40:18,042 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 08:40:18,042 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 08:40:18,043 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:17" (1/1) ... [2021-11-09 08:40:18,054 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:40:18,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:40:18,089 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 08:40:18,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 08:40:18,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 08:40:18,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 08:40:18,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 08:40:18,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 08:40:18,365 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 08:40:18,365 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-09 08:40:18,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:40:18 BoogieIcfgContainer [2021-11-09 08:40:18,368 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 08:40:18,370 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 08:40:18,371 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 08:40:18,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 08:40:18,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 08:40:17" (1/3) ... [2021-11-09 08:40:18,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d84f540 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:40:18, skipping insertion in model container [2021-11-09 08:40:18,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:17" (2/3) ... [2021-11-09 08:40:18,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d84f540 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:40:18, skipping insertion in model container [2021-11-09 08:40:18,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:40:18" (3/3) ... [2021-11-09 08:40:18,379 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_2.i [2021-11-09 08:40:18,401 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 08:40:18,402 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-09 08:40:18,481 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 08:40:18,489 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-09 08:40:18,490 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-09 08:40:18,509 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:40:18,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-09 08:40:18,516 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:40:18,517 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-09 08:40:18,517 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:40:18,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:40:18,526 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2021-11-09 08:40:18,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:40:18,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194869454] [2021-11-09 08:40:18,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:40:18,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:40:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:40:18,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:40:18,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:40:18,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194869454] [2021-11-09 08:40:18,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194869454] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:40:18,739 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:40:18,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 08:40:18,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571464314] [2021-11-09 08:40:18,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-09 08:40:18,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:40:18,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-09 08:40:18,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 08:40:18,770 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:40:18,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:40:18,788 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-11-09 08:40:18,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:40:18,790 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-09 08:40:18,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:40:18,801 INFO L225 Difference]: With dead ends: 19 [2021-11-09 08:40:18,801 INFO L226 Difference]: Without dead ends: 7 [2021-11-09 08:40:18,805 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 08:40:18,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-11-09 08:40:18,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-11-09 08:40:18,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:40:18,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2021-11-09 08:40:18,842 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2021-11-09 08:40:18,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:40:18,843 INFO L470 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2021-11-09 08:40:18,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:40:18,844 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2021-11-09 08:40:18,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-09 08:40:18,845 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:40:18,845 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-09 08:40:18,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 08:40:18,846 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:40:18,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:40:18,847 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2021-11-09 08:40:18,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:40:18,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608790205] [2021-11-09 08:40:18,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:40:18,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:40:18,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:40:18,881 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:40:18,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:40:18,927 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:40:18,927 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-09 08:40:18,930 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:40:18,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-09 08:40:18,937 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-09 08:40:18,941 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-09 08:40:18,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 08:40:18 BoogieIcfgContainer [2021-11-09 08:40:18,962 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-09 08:40:18,963 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 08:40:18,963 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 08:40:18,964 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 08:40:18,964 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:40:18" (3/4) ... [2021-11-09 08:40:18,969 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-09 08:40:18,969 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 08:40:18,971 INFO L168 Benchmark]: Toolchain (without parser) took 1325.68 ms. Allocated memory is still 98.6 MB. Free memory was 57.7 MB in the beginning and 39.5 MB in the end (delta: 18.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-11-09 08:40:18,972 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 98.6 MB. Free memory is still 73.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 08:40:18,973 INFO L168 Benchmark]: CACSL2BoogieTranslator took 317.51 ms. Allocated memory is still 98.6 MB. Free memory was 57.5 MB in the beginning and 72.6 MB in the end (delta: -15.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-09 08:40:18,974 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.17 ms. Allocated memory is still 98.6 MB. Free memory was 72.6 MB in the beginning and 71.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 08:40:18,975 INFO L168 Benchmark]: Boogie Preprocessor took 26.63 ms. Allocated memory is still 98.6 MB. Free memory was 71.3 MB in the beginning and 70.5 MB in the end (delta: 860.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 08:40:18,976 INFO L168 Benchmark]: RCFGBuilder took 326.51 ms. Allocated memory is still 98.6 MB. Free memory was 70.1 MB in the beginning and 61.3 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-09 08:40:18,977 INFO L168 Benchmark]: TraceAbstraction took 591.93 ms. Allocated memory is still 98.6 MB. Free memory was 60.8 MB in the beginning and 39.9 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-11-09 08:40:18,977 INFO L168 Benchmark]: Witness Printer took 5.98 ms. Allocated memory is still 98.6 MB. Free memory was 39.9 MB in the beginning and 39.5 MB in the end (delta: 413.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 08:40:18,982 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 98.6 MB. Free memory is still 73.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 317.51 ms. Allocated memory is still 98.6 MB. Free memory was 57.5 MB in the beginning and 72.6 MB in the end (delta: -15.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.17 ms. Allocated memory is still 98.6 MB. Free memory was 72.6 MB in the beginning and 71.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.63 ms. Allocated memory is still 98.6 MB. Free memory was 71.3 MB in the beginning and 70.5 MB in the end (delta: 860.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 326.51 ms. Allocated memory is still 98.6 MB. Free memory was 70.1 MB in the beginning and 61.3 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 591.93 ms. Allocated memory is still 98.6 MB. Free memory was 60.8 MB in the beginning and 39.9 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Witness Printer took 5.98 ms. Allocated memory is still 98.6 MB. Free memory was 39.9 MB in the beginning and 39.5 MB in the end (delta: 413.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 28]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 27, overapproximation of someBinaryArithmeticFLOAToperation at line 25. Possible FailurePath: [L20] float IN = __VERIFIER_nondet_float(); [L15] COND FALSE !(!cond) [L23] float x = IN; [L25] float result = x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L27] COND TRUE !(result <= 1.0f && result >= -1.0f) [L28] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2021-11-09 08:40:19,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/sine_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX --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 3c9d4aa97272954ae32108b6910bcaa7825a2434a76b0876a3de03aaa87e2ff7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 08:40:22,166 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 08:40:22,172 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 08:40:22,224 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 08:40:22,229 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 08:40:22,237 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 08:40:22,242 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 08:40:22,251 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 08:40:22,260 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 08:40:22,262 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 08:40:22,264 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 08:40:22,269 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 08:40:22,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 08:40:22,281 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 08:40:22,283 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 08:40:22,286 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 08:40:22,289 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 08:40:22,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 08:40:22,293 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 08:40:22,297 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 08:40:22,299 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 08:40:22,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 08:40:22,303 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 08:40:22,305 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 08:40:22,309 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 08:40:22,310 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 08:40:22,311 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 08:40:22,312 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 08:40:22,313 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 08:40:22,315 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 08:40:22,316 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 08:40:22,317 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 08:40:22,318 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 08:40:22,320 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 08:40:22,322 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 08:40:22,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 08:40:22,323 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 08:40:22,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 08:40:22,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 08:40:22,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 08:40:22,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 08:40:22,329 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-09 08:40:22,365 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 08:40:22,369 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 08:40:22,371 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 08:40:22,373 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 08:40:22,374 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 08:40:22,376 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 08:40:22,376 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 08:40:22,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 08:40:22,377 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 08:40:22,377 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 08:40:22,379 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 08:40:22,379 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 08:40:22,379 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 08:40:22,380 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 08:40:22,380 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-09 08:40:22,380 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-09 08:40:22,381 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 08:40:22,381 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 08:40:22,381 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 08:40:22,382 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 08:40:22,382 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 08:40:22,382 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 08:40:22,383 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 08:40:22,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:40:22,383 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 08:40:22,383 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 08:40:22,384 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 08:40:22,384 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-09 08:40:22,384 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-09 08:40:22,385 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 08:40:22,385 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 08:40:22,385 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 08:40:22,386 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 08:40:22,386 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-09 08:40:22,386 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_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c9d4aa97272954ae32108b6910bcaa7825a2434a76b0876a3de03aaa87e2ff7 [2021-11-09 08:40:22,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 08:40:22,933 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 08:40:22,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 08:40:22,939 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 08:40:22,940 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 08:40:22,941 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/floats-cdfpl/sine_2.i [2021-11-09 08:40:23,052 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX/data/44ab80f52/d069b5bc7a0d4d23b6053e45e4b9d328/FLAG501db91e9 [2021-11-09 08:40:23,770 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 08:40:23,771 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/sv-benchmarks/c/floats-cdfpl/sine_2.i [2021-11-09 08:40:23,779 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX/data/44ab80f52/d069b5bc7a0d4d23b6053e45e4b9d328/FLAG501db91e9 [2021-11-09 08:40:24,112 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX/data/44ab80f52/d069b5bc7a0d4d23b6053e45e4b9d328 [2021-11-09 08:40:24,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 08:40:24,118 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 08:40:24,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 08:40:24,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 08:40:24,125 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 08:40:24,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:40:24" (1/1) ... [2021-11-09 08:40:24,128 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e72605c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:24, skipping insertion in model container [2021-11-09 08:40:24,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:40:24" (1/1) ... [2021-11-09 08:40:24,139 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 08:40:24,157 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 08:40:24,346 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_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/sv-benchmarks/c/floats-cdfpl/sine_2.i[1143,1156] [2021-11-09 08:40:24,351 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:40:24,368 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 08:40:24,407 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_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/sv-benchmarks/c/floats-cdfpl/sine_2.i[1143,1156] [2021-11-09 08:40:24,415 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:40:24,437 INFO L208 MainTranslator]: Completed translation [2021-11-09 08:40:24,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:24 WrapperNode [2021-11-09 08:40:24,438 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 08:40:24,440 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 08:40:24,440 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 08:40:24,441 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 08:40:24,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:24" (1/1) ... [2021-11-09 08:40:24,527 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:24" (1/1) ... [2021-11-09 08:40:24,554 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 08:40:24,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 08:40:24,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 08:40:24,556 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 08:40:24,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:24" (1/1) ... [2021-11-09 08:40:24,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:24" (1/1) ... [2021-11-09 08:40:24,576 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:24" (1/1) ... [2021-11-09 08:40:24,577 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:24" (1/1) ... [2021-11-09 08:40:24,604 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:24" (1/1) ... [2021-11-09 08:40:24,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:24" (1/1) ... [2021-11-09 08:40:24,609 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:24" (1/1) ... [2021-11-09 08:40:24,612 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 08:40:24,613 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 08:40:24,613 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 08:40:24,614 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 08:40:24,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:24" (1/1) ... [2021-11-09 08:40:24,628 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:40:24,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:40:24,663 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 08:40:24,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 08:40:24,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-09 08:40:24,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 08:40:24,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 08:40:24,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 08:40:27,288 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 08:40:27,288 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-09 08:40:27,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:40:27 BoogieIcfgContainer [2021-11-09 08:40:27,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 08:40:27,294 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 08:40:27,294 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 08:40:27,298 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 08:40:27,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 08:40:24" (1/3) ... [2021-11-09 08:40:27,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1286ff63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:40:27, skipping insertion in model container [2021-11-09 08:40:27,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:40:24" (2/3) ... [2021-11-09 08:40:27,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1286ff63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:40:27, skipping insertion in model container [2021-11-09 08:40:27,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:40:27" (3/3) ... [2021-11-09 08:40:27,303 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_2.i [2021-11-09 08:40:27,311 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 08:40:27,311 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-09 08:40:27,377 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 08:40:27,386 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-09 08:40:27,386 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-09 08:40:27,405 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:40:27,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-09 08:40:27,412 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:40:27,413 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-09 08:40:27,413 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:40:27,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:40:27,422 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2021-11-09 08:40:27,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 08:40:27,439 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1324824558] [2021-11-09 08:40:27,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:40:27,440 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 08:40:27,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 08:40:27,445 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 08:40:27,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-09 08:40:28,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:40:28,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-09 08:40:28,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:40:28,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:40:28,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 08:40:28,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:40:28,328 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 08:40:28,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1324824558] [2021-11-09 08:40:28,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1324824558] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 08:40:28,330 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:40:28,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-09 08:40:28,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918597774] [2021-11-09 08:40:28,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-09 08:40:28,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 08:40:28,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-09 08:40:28,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 08:40:28,360 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:40:28,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:40:28,377 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-11-09 08:40:28,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:40:28,379 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-09 08:40:28,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:40:28,389 INFO L225 Difference]: With dead ends: 19 [2021-11-09 08:40:28,390 INFO L226 Difference]: Without dead ends: 7 [2021-11-09 08:40:28,393 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 08:40:28,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-11-09 08:40:28,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-11-09 08:40:28,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:40:28,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2021-11-09 08:40:28,428 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2021-11-09 08:40:28,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:40:28,429 INFO L470 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2021-11-09 08:40:28,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:40:28,430 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2021-11-09 08:40:28,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-09 08:40:28,431 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:40:28,431 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-09 08:40:28,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-09 08:40:28,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 08:40:28,646 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:40:28,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:40:28,647 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2021-11-09 08:40:28,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 08:40:28,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1624769325] [2021-11-09 08:40:28,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:40:28,649 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 08:40:28,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 08:40:28,651 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 08:40:28,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a468f5dc-37c4-4b30-924c-5b06b53a0dc6/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process