./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ --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 86314e6cd12102dcba0a36e5967a163555a00f3305c4ea506b55d42491a26d21 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 11:00:59,512 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 11:00:59,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 11:00:59,574 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 11:00:59,574 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 11:00:59,576 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 11:00:59,578 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 11:00:59,581 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 11:00:59,583 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 11:00:59,585 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 11:00:59,586 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 11:00:59,597 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 11:00:59,597 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 11:00:59,607 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 11:00:59,608 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 11:00:59,610 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 11:00:59,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 11:00:59,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 11:00:59,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 11:00:59,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 11:00:59,623 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 11:00:59,626 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 11:00:59,633 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 11:00:59,634 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 11:00:59,652 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 11:00:59,652 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 11:00:59,653 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 11:00:59,655 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 11:00:59,656 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 11:00:59,657 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 11:00:59,658 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 11:00:59,677 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 11:00:59,679 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 11:00:59,681 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 11:00:59,682 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 11:00:59,682 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 11:00:59,683 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 11:00:59,684 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 11:00:59,684 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 11:00:59,685 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 11:00:59,686 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 11:00:59,687 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 11:00:59,722 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 11:00:59,722 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 11:00:59,723 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 11:00:59,723 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 11:00:59,724 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 11:00:59,724 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 11:00:59,725 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 11:00:59,725 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 11:00:59,725 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 11:00:59,725 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 11:00:59,726 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 11:00:59,726 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 11:00:59,726 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 11:00:59,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 11:00:59,727 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 11:00:59,727 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 11:00:59,727 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 11:00:59,728 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 11:00:59,728 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 11:00:59,728 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 11:00:59,728 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 11:00:59,729 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 11:00:59,729 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 11:00:59,729 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 11:00:59,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:00:59,730 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 11:00:59,730 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 11:00:59,730 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 11:00:59,731 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 11:00:59,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 11:00:59,731 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 11:00:59,731 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 11:00:59,732 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 11:00:59,732 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_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86314e6cd12102dcba0a36e5967a163555a00f3305c4ea506b55d42491a26d21 [2022-10-17 11:01:00,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 11:01:00,035 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 11:01:00,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 11:01:00,040 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 11:01:00,041 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 11:01:00,042 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c [2022-10-17 11:01:00,120 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ/data/5d559adbd/fa733dbb35334ce5a29f26d7f8a65381/FLAG896671f89 [2022-10-17 11:01:00,653 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 11:01:00,654 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c [2022-10-17 11:01:00,662 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ/data/5d559adbd/fa733dbb35334ce5a29f26d7f8a65381/FLAG896671f89 [2022-10-17 11:01:00,957 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ/data/5d559adbd/fa733dbb35334ce5a29f26d7f8a65381 [2022-10-17 11:01:00,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 11:01:00,965 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 11:01:00,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 11:01:00,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 11:01:00,972 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 11:01:00,973 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:01:00" (1/1) ... [2022-10-17 11:01:00,976 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@be2753c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:00, skipping insertion in model container [2022-10-17 11:01:00,976 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:01:00" (1/1) ... [2022-10-17 11:01:00,984 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 11:01:01,029 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 11:01:01,299 WARN L230 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_859f21f7-4cc0-40a5-af0b-21545ab592c8/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c[1996,2009] [2022-10-17 11:01:01,305 WARN L230 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_859f21f7-4cc0-40a5-af0b-21545ab592c8/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c[2365,2378] [2022-10-17 11:01:01,364 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:01:01,373 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 11:01:01,410 WARN L230 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_859f21f7-4cc0-40a5-af0b-21545ab592c8/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c[1996,2009] [2022-10-17 11:01:01,416 WARN L230 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_859f21f7-4cc0-40a5-af0b-21545ab592c8/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c[2365,2378] [2022-10-17 11:01:01,492 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:01:01,512 INFO L208 MainTranslator]: Completed translation [2022-10-17 11:01:01,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:01 WrapperNode [2022-10-17 11:01:01,513 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 11:01:01,514 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 11:01:01,514 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 11:01:01,514 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 11:01:01,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:01" (1/1) ... [2022-10-17 11:01:01,548 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:01" (1/1) ... [2022-10-17 11:01:01,597 INFO L138 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 199 [2022-10-17 11:01:01,602 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 11:01:01,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 11:01:01,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 11:01:01,607 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 11:01:01,616 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:01" (1/1) ... [2022-10-17 11:01:01,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:01" (1/1) ... [2022-10-17 11:01:01,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:01" (1/1) ... [2022-10-17 11:01:01,620 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:01" (1/1) ... [2022-10-17 11:01:01,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:01" (1/1) ... [2022-10-17 11:01:01,638 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:01" (1/1) ... [2022-10-17 11:01:01,641 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:01" (1/1) ... [2022-10-17 11:01:01,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:01" (1/1) ... [2022-10-17 11:01:01,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 11:01:01,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 11:01:01,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 11:01:01,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 11:01:01,652 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:01" (1/1) ... [2022-10-17 11:01:01,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:01:01,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:01:01,700 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 11:01:01,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 11:01:01,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 11:01:01,747 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-10-17 11:01:01,748 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-10-17 11:01:01,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 11:01:01,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 11:01:01,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 11:01:01,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 11:01:01,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 11:01:01,888 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 11:01:01,893 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 11:01:02,402 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 11:01:02,427 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 11:01:02,427 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 11:01:02,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:01:02 BoogieIcfgContainer [2022-10-17 11:01:02,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 11:01:02,433 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 11:01:02,433 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 11:01:02,446 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 11:01:02,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 11:01:00" (1/3) ... [2022-10-17 11:01:02,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35f9e68c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:01:02, skipping insertion in model container [2022-10-17 11:01:02,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:01" (2/3) ... [2022-10-17 11:01:02,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35f9e68c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:01:02, skipping insertion in model container [2022-10-17 11:01:02,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:01:02" (3/3) ... [2022-10-17 11:01:02,449 INFO L112 eAbstractionObserver]: Analyzing ICFG square_1+soft_float_3a.c.cil.c [2022-10-17 11:01:02,472 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 11:01:02,472 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-17 11:01:02,566 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 11:01:02,576 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@720e681f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 11:01:02,576 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-17 11:01:02,581 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 86 states have (on average 1.697674418604651) internal successors, (146), 89 states have internal predecessors, (146), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-17 11:01:02,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 11:01:02,593 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:01:02,594 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:01:02,595 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:01:02,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:01:02,603 INFO L85 PathProgramCache]: Analyzing trace with hash -685161840, now seen corresponding path program 1 times [2022-10-17 11:01:02,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:01:02,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034190386] [2022-10-17 11:01:02,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:01:02,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:01:02,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:01:02,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:01:02,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:01:02,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034190386] [2022-10-17 11:01:02,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034190386] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:01:02,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:01:02,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 11:01:02,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211204692] [2022-10-17 11:01:02,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:01:02,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 11:01:02,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:01:02,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 11:01:02,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 11:01:02,856 INFO L87 Difference]: Start difference. First operand has 96 states, 86 states have (on average 1.697674418604651) internal successors, (146), 89 states have internal predecessors, (146), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-10-17 11:01:02,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:01:02,923 INFO L93 Difference]: Finished difference Result 187 states and 309 transitions. [2022-10-17 11:01:02,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 11:01:02,925 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2022-10-17 11:01:02,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:01:02,937 INFO L225 Difference]: With dead ends: 187 [2022-10-17 11:01:02,938 INFO L226 Difference]: Without dead ends: 87 [2022-10-17 11:01:02,943 INFO L412 NwaCegarLoop]: 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 [2022-10-17 11:01:02,947 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 11:01:02,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 11:01:02,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-10-17 11:01:03,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2022-10-17 11:01:03,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 79 states have (on average 1.5063291139240507) internal successors, (119), 80 states have internal predecessors, (119), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-17 11:01:03,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 128 transitions. [2022-10-17 11:01:03,018 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 128 transitions. Word has length 7 [2022-10-17 11:01:03,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:01:03,018 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 128 transitions. [2022-10-17 11:01:03,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-10-17 11:01:03,020 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 128 transitions. [2022-10-17 11:01:03,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 11:01:03,022 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:01:03,022 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:01:03,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 11:01:03,023 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:01:03,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:01:03,025 INFO L85 PathProgramCache]: Analyzing trace with hash -685102258, now seen corresponding path program 1 times [2022-10-17 11:01:03,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:01:03,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592004033] [2022-10-17 11:01:03,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:01:03,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:01:03,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:01:03,064 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 11:01:03,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 11:01:03,121 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 11:01:03,122 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-17 11:01:03,125 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-10-17 11:01:03,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-10-17 11:01:03,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 11:01:03,131 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-10-17 11:01:03,135 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-17 11:01:03,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 11:01:03 BoogieIcfgContainer [2022-10-17 11:01:03,165 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-17 11:01:03,166 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 11:01:03,166 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 11:01:03,167 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 11:01:03,168 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:01:02" (3/4) ... [2022-10-17 11:01:03,173 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-10-17 11:01:03,173 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 11:01:03,176 INFO L158 Benchmark]: Toolchain (without parser) took 2209.15ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 55.9MB in the beginning and 49.3MB in the end (delta: 6.6MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. [2022-10-17 11:01:03,177 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 86.0MB. Free memory is still 55.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 11:01:03,180 INFO L158 Benchmark]: CACSL2BoogieTranslator took 545.33ms. Allocated memory is still 86.0MB. Free memory was 55.7MB in the beginning and 55.4MB in the end (delta: 357.8kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 11:01:03,181 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.60ms. Allocated memory is still 86.0MB. Free memory was 55.4MB in the beginning and 53.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 11:01:03,184 INFO L158 Benchmark]: Boogie Preprocessor took 42.25ms. Allocated memory is still 86.0MB. Free memory was 53.2MB in the beginning and 51.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 11:01:03,185 INFO L158 Benchmark]: RCFGBuilder took 780.44ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 51.1MB in the beginning and 76.1MB in the end (delta: -24.9MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2022-10-17 11:01:03,186 INFO L158 Benchmark]: TraceAbstraction took 732.17ms. Allocated memory is still 107.0MB. Free memory was 75.1MB in the beginning and 49.3MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-10-17 11:01:03,186 INFO L158 Benchmark]: Witness Printer took 7.30ms. Allocated memory is still 107.0MB. Free memory is still 49.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 11:01:03,194 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 86.0MB. Free memory is still 55.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 545.33ms. Allocated memory is still 86.0MB. Free memory was 55.7MB in the beginning and 55.4MB in the end (delta: 357.8kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.60ms. Allocated memory is still 86.0MB. Free memory was 55.4MB in the beginning and 53.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.25ms. Allocated memory is still 86.0MB. Free memory was 53.2MB in the beginning and 51.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 780.44ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 51.1MB in the beginning and 76.1MB in the end (delta: -24.9MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. * TraceAbstraction took 732.17ms. Allocated memory is still 107.0MB. Free memory was 75.1MB in the beginning and 49.3MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 7.30ms. Allocated memory is still 107.0MB. Free memory is still 49.3MB. There was no memory consumed. Max. memory is 16.1GB. * 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: 48]: 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 47, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L320] COND TRUE __VERIFIER_nondet_int() [L321] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=53, x=53] [L47] COND TRUE !(result >= 0.0f && result < 1.39f) VAL [IN=53, x=53] [L48] reach_error() VAL [IN=53, x=53] - UnprovableResult [Line: 60]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 96 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 139 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 139 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, 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=96occurred 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: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 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 [2022-10-17 11:01:03,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ/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_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ --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 86314e6cd12102dcba0a36e5967a163555a00f3305c4ea506b55d42491a26d21 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 11:01:05,884 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 11:01:05,887 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 11:01:05,930 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 11:01:05,931 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 11:01:05,932 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 11:01:05,936 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 11:01:05,945 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 11:01:05,951 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 11:01:05,953 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 11:01:05,955 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 11:01:05,958 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 11:01:05,958 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 11:01:05,965 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 11:01:05,968 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 11:01:05,970 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 11:01:05,973 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 11:01:05,975 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 11:01:05,979 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 11:01:05,995 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 11:01:06,006 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 11:01:06,008 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 11:01:06,011 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 11:01:06,013 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 11:01:06,022 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 11:01:06,025 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 11:01:06,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 11:01:06,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 11:01:06,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 11:01:06,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 11:01:06,028 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 11:01:06,029 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 11:01:06,030 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 11:01:06,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 11:01:06,031 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 11:01:06,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 11:01:06,032 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 11:01:06,032 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 11:01:06,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 11:01:06,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 11:01:06,036 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 11:01:06,037 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-10-17 11:01:06,095 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 11:01:06,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 11:01:06,096 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 11:01:06,097 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 11:01:06,098 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 11:01:06,098 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 11:01:06,100 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 11:01:06,100 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 11:01:06,100 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 11:01:06,100 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 11:01:06,102 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 11:01:06,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 11:01:06,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 11:01:06,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 11:01:06,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 11:01:06,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 11:01:06,103 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-17 11:01:06,104 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-10-17 11:01:06,104 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-10-17 11:01:06,104 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 11:01:06,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 11:01:06,105 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 11:01:06,105 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 11:01:06,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 11:01:06,106 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 11:01:06,106 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 11:01:06,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:01:06,107 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 11:01:06,107 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 11:01:06,107 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 11:01:06,108 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-10-17 11:01:06,108 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-10-17 11:01:06,108 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 11:01:06,108 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 11:01:06,109 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 11:01:06,109 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-17 11:01:06,109 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_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86314e6cd12102dcba0a36e5967a163555a00f3305c4ea506b55d42491a26d21 [2022-10-17 11:01:06,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 11:01:06,541 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 11:01:06,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 11:01:06,545 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 11:01:06,546 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 11:01:06,547 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c [2022-10-17 11:01:06,626 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ/data/0d071f74f/239ca5ea45604b5ebb626c0294a56b23/FLAG3bc386232 [2022-10-17 11:01:07,243 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 11:01:07,244 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c [2022-10-17 11:01:07,259 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ/data/0d071f74f/239ca5ea45604b5ebb626c0294a56b23/FLAG3bc386232 [2022-10-17 11:01:07,564 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ/data/0d071f74f/239ca5ea45604b5ebb626c0294a56b23 [2022-10-17 11:01:07,566 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 11:01:07,568 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 11:01:07,569 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 11:01:07,569 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 11:01:07,581 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 11:01:07,582 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:01:07" (1/1) ... [2022-10-17 11:01:07,583 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a640109 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:07, skipping insertion in model container [2022-10-17 11:01:07,583 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:01:07" (1/1) ... [2022-10-17 11:01:07,590 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 11:01:07,619 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 11:01:07,843 WARN L230 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_859f21f7-4cc0-40a5-af0b-21545ab592c8/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c[1996,2009] [2022-10-17 11:01:07,848 WARN L230 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_859f21f7-4cc0-40a5-af0b-21545ab592c8/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c[2365,2378] [2022-10-17 11:01:07,927 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:01:07,946 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 11:01:07,979 WARN L230 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_859f21f7-4cc0-40a5-af0b-21545ab592c8/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c[1996,2009] [2022-10-17 11:01:07,980 WARN L230 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_859f21f7-4cc0-40a5-af0b-21545ab592c8/sv-benchmarks/c/combinations/square_1+soft_float_3a.c.cil.c[2365,2378] [2022-10-17 11:01:08,032 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:01:08,066 INFO L208 MainTranslator]: Completed translation [2022-10-17 11:01:08,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:08 WrapperNode [2022-10-17 11:01:08,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 11:01:08,068 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 11:01:08,068 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 11:01:08,068 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 11:01:08,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:08" (1/1) ... [2022-10-17 11:01:08,091 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:08" (1/1) ... [2022-10-17 11:01:08,120 INFO L138 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 129 [2022-10-17 11:01:08,120 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 11:01:08,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 11:01:08,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 11:01:08,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 11:01:08,132 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:08" (1/1) ... [2022-10-17 11:01:08,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:08" (1/1) ... [2022-10-17 11:01:08,138 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:08" (1/1) ... [2022-10-17 11:01:08,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:08" (1/1) ... [2022-10-17 11:01:08,150 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:08" (1/1) ... [2022-10-17 11:01:08,156 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:08" (1/1) ... [2022-10-17 11:01:08,177 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:08" (1/1) ... [2022-10-17 11:01:08,192 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:08" (1/1) ... [2022-10-17 11:01:08,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 11:01:08,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 11:01:08,198 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 11:01:08,198 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 11:01:08,199 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:08" (1/1) ... [2022-10-17 11:01:08,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:01:08,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:01:08,232 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 11:01:08,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 11:01:08,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 11:01:08,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-10-17 11:01:08,292 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-10-17 11:01:08,292 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-10-17 11:01:08,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 11:01:08,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 11:01:08,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 11:01:08,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 11:01:08,430 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 11:01:08,433 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 11:01:11,107 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 11:01:11,116 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 11:01:11,116 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 11:01:11,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:01:11 BoogieIcfgContainer [2022-10-17 11:01:11,119 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 11:01:11,122 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 11:01:11,122 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 11:01:11,126 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 11:01:11,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 11:01:07" (1/3) ... [2022-10-17 11:01:11,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@373ecb13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:01:11, skipping insertion in model container [2022-10-17 11:01:11,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:01:08" (2/3) ... [2022-10-17 11:01:11,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@373ecb13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:01:11, skipping insertion in model container [2022-10-17 11:01:11,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:01:11" (3/3) ... [2022-10-17 11:01:11,129 INFO L112 eAbstractionObserver]: Analyzing ICFG square_1+soft_float_3a.c.cil.c [2022-10-17 11:01:11,164 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 11:01:11,164 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-17 11:01:11,236 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 11:01:11,244 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@acb2b83, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 11:01:11,245 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-17 11:01:11,250 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 50 states have (on average 1.56) internal successors, (78), 53 states have internal predecessors, (78), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-17 11:01:11,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 11:01:11,259 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:01:11,260 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:01:11,261 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:01:11,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:01:11,267 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2022-10-17 11:01:11,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 11:01:11,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103299767] [2022-10-17 11:01:11,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:01:11,283 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 11:01:11,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 11:01:11,287 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 11:01:11,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-10-17 11:01:11,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:01:11,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2022-10-17 11:01:11,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:01:11,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:01:11,965 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 11:01:11,966 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 11:01:11,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2103299767] [2022-10-17 11:01:11,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2103299767] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:01:11,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:01:11,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 11:01:11,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806825341] [2022-10-17 11:01:11,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:01:11,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 11:01:11,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 11:01:12,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 11:01:12,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 11:01:12,027 INFO L87 Difference]: Start difference. First operand has 60 states, 50 states have (on average 1.56) internal successors, (78), 53 states have internal predecessors, (78), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-10-17 11:01:12,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:01:12,061 INFO L93 Difference]: Finished difference Result 115 states and 173 transitions. [2022-10-17 11:01:12,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 11:01:12,063 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2022-10-17 11:01:12,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:01:12,074 INFO L225 Difference]: With dead ends: 115 [2022-10-17 11:01:12,074 INFO L226 Difference]: Without dead ends: 51 [2022-10-17 11:01:12,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 11:01:12,083 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 11:01:12,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 11:01:12,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-10-17 11:01:12,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-10-17 11:01:12,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 44 states have internal predecessors, (61), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-17 11:01:12,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2022-10-17 11:01:12,147 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 70 transitions. Word has length 7 [2022-10-17 11:01:12,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:01:12,148 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 70 transitions. [2022-10-17 11:01:12,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-10-17 11:01:12,148 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions. [2022-10-17 11:01:12,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 11:01:12,149 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:01:12,149 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:01:12,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-10-17 11:01:12,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 11:01:12,357 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:01:12,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:01:12,358 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2022-10-17 11:01:12,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 11:01:12,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1651967717] [2022-10-17 11:01:12,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:01:12,360 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 11:01:12,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 11:01:12,367 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 11:01:12,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_859f21f7-4cc0-40a5-af0b-21545ab592c8/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process