./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0fdb430a563564dba34d4fe6c6ffeed490245913891172fda591ae44bb309801 --- 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-8393723 [2022-11-19 06:56:51,038 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:56:51,040 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:56:51,071 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:56:51,072 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:56:51,079 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:56:51,082 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:56:51,087 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:56:51,090 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:56:51,098 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:56:51,100 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:56:51,102 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:56:51,103 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:56:51,106 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:56:51,107 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:56:51,108 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:56:51,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:56:51,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:56:51,111 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:56:51,113 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:56:51,115 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:56:51,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:56:51,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:56:51,122 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:56:51,129 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:56:51,133 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:56:51,134 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:56:51,135 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:56:51,137 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:56:51,138 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:56:51,139 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:56:51,140 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:56:51,141 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:56:51,143 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:56:51,144 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:56:51,146 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:56:51,147 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:56:51,147 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:56:51,148 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:56:51,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:56:51,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:56:51,150 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 06:56:51,195 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:56:51,196 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:56:51,196 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:56:51,197 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:56:51,198 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:56:51,198 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:56:51,199 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:56:51,199 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:56:51,199 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:56:51,199 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:56:51,201 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:56:51,201 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:56:51,201 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:56:51,201 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:56:51,202 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:56:51,202 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:56:51,202 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:56:51,202 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:56:51,203 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:56:51,203 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 06:56:51,204 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:56:51,204 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 06:56:51,204 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:56:51,206 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:56:51,206 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:56:51,207 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:56:51,207 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 06:56:51,207 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:56:51,207 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:56:51,208 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:56:51,208 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:56:51,208 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:56:51,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:56:51,209 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:56:51,209 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:56:51,209 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:56:51,210 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:56:51,210 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:56:51,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:56:51,210 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:56:51,211 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:56:51,211 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_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fdb430a563564dba34d4fe6c6ffeed490245913891172fda591ae44bb309801 [2022-11-19 06:56:51,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:56:51,561 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:56:51,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:56:51,575 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:56:51,576 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:56:51,578 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c [2022-11-19 06:56:51,650 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/data/ea977012b/ed5a33f4315b4ccf90193945c0c0127e/FLAG5ec357497 [2022-11-19 06:56:52,196 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:56:52,197 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c [2022-11-19 06:56:52,208 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/data/ea977012b/ed5a33f4315b4ccf90193945c0c0127e/FLAG5ec357497 [2022-11-19 06:56:52,552 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/data/ea977012b/ed5a33f4315b4ccf90193945c0c0127e [2022-11-19 06:56:52,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:56:52,556 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:56:52,558 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:56:52,558 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:56:52,566 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:56:52,566 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:56:52" (1/1) ... [2022-11-19 06:56:52,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45fbdc76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:52, skipping insertion in model container [2022-11-19 06:56:52,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:56:52" (1/1) ... [2022-11-19 06:56:52,577 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:56:52,627 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:56:52,842 WARN L234 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_480ec500-054c-4695-82ba-7366a683ac0b/sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c[1997,2010] [2022-11-19 06:56:52,848 WARN L234 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_480ec500-054c-4695-82ba-7366a683ac0b/sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c[2366,2379] [2022-11-19 06:56:52,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:56:52,898 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:56:52,913 WARN L234 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_480ec500-054c-4695-82ba-7366a683ac0b/sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c[1997,2010] [2022-11-19 06:56:52,914 WARN L234 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_480ec500-054c-4695-82ba-7366a683ac0b/sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c[2366,2379] [2022-11-19 06:56:52,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:56:52,960 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:56:52,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:52 WrapperNode [2022-11-19 06:56:52,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:56:52,962 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:56:52,963 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:56:52,963 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:56:52,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:52" (1/1) ... [2022-11-19 06:56:53,000 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:52" (1/1) ... [2022-11-19 06:56:53,026 INFO L138 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 175 [2022-11-19 06:56:53,027 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:56:53,027 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:56:53,028 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:56:53,028 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:56:53,037 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:52" (1/1) ... [2022-11-19 06:56:53,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:52" (1/1) ... [2022-11-19 06:56:53,040 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:52" (1/1) ... [2022-11-19 06:56:53,041 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:52" (1/1) ... [2022-11-19 06:56:53,048 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:52" (1/1) ... [2022-11-19 06:56:53,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:52" (1/1) ... [2022-11-19 06:56:53,056 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:52" (1/1) ... [2022-11-19 06:56:53,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:52" (1/1) ... [2022-11-19 06:56:53,060 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:56:53,061 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:56:53,062 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:56:53,062 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:56:53,063 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:52" (1/1) ... [2022-11-19 06:56:53,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:56:53,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:56:53,113 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:56:53,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:56:53,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:56:53,163 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-11-19 06:56:53,163 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-11-19 06:56:53,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:56:53,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:56:53,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:56:53,164 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 06:56:53,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 06:56:53,281 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:56:53,286 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:56:53,769 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:56:54,111 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:56:54,111 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 06:56:54,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:56:54 BoogieIcfgContainer [2022-11-19 06:56:54,114 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:56:54,117 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:56:54,118 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:56:54,121 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:56:54,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:56:52" (1/3) ... [2022-11-19 06:56:54,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52498238 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:56:54, skipping insertion in model container [2022-11-19 06:56:54,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:52" (2/3) ... [2022-11-19 06:56:54,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52498238 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:56:54, skipping insertion in model container [2022-11-19 06:56:54,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:56:54" (3/3) ... [2022-11-19 06:56:54,127 INFO L112 eAbstractionObserver]: Analyzing ICFG square_2+soft_float_2a.c.cil.c [2022-11-19 06:56:54,146 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:56:54,147 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-19 06:56:54,204 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:56:54,210 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=FINITE_AUTOMATA, 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;@4f84cfe0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:56:54,211 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-19 06:56:54,215 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 35 states have (on average 1.5714285714285714) internal successors, (55), 38 states have internal predecessors, (55), 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) [2022-11-19 06:56:54,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 06:56:54,223 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:56:54,223 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 06:56:54,224 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:56:54,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:56:54,230 INFO L85 PathProgramCache]: Analyzing trace with hash 10002406, now seen corresponding path program 1 times [2022-11-19 06:56:54,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:56:54,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650334729] [2022-11-19 06:56:54,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:56:54,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:56:54,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 06:56:54,349 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 06:56:54,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 06:56:54,393 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 06:56:54,396 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 06:56:54,398 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-19 06:56:54,400 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-11-19 06:56:54,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 06:56:54,408 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-19 06:56:54,412 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 06:56:54,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:56:54 BoogieIcfgContainer [2022-11-19 06:56:54,441 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 06:56:54,443 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 06:56:54,444 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 06:56:54,444 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 06:56:54,445 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:56:54" (3/4) ... [2022-11-19 06:56:54,448 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 06:56:54,448 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 06:56:54,450 INFO L158 Benchmark]: Toolchain (without parser) took 1893.56ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 63.6MB in the beginning and 57.9MB in the end (delta: 5.7MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. [2022-11-19 06:56:54,451 INFO L158 Benchmark]: CDTParser took 0.56ms. Allocated memory is still 96.5MB. Free memory was 69.7MB in the beginning and 69.7MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:56:54,452 INFO L158 Benchmark]: CACSL2BoogieTranslator took 403.81ms. Allocated memory is still 96.5MB. Free memory was 63.4MB in the beginning and 69.5MB in the end (delta: -6.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 06:56:54,454 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.41ms. Allocated memory is still 96.5MB. Free memory was 69.5MB in the beginning and 67.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:56:54,460 INFO L158 Benchmark]: Boogie Preprocessor took 33.23ms. Allocated memory is still 96.5MB. Free memory was 67.4MB in the beginning and 65.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:56:54,462 INFO L158 Benchmark]: RCFGBuilder took 1052.73ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 65.6MB in the beginning and 73.6MB in the end (delta: -8.0MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2022-11-19 06:56:54,463 INFO L158 Benchmark]: TraceAbstraction took 323.36ms. Allocated memory is still 117.4MB. Free memory was 72.6MB in the beginning and 58.4MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-19 06:56:54,463 INFO L158 Benchmark]: Witness Printer took 4.86ms. Allocated memory is still 117.4MB. Free memory was 58.4MB in the beginning and 57.9MB in the end (delta: 514.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:56:54,492 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56ms. Allocated memory is still 96.5MB. Free memory was 69.7MB in the beginning and 69.7MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 403.81ms. Allocated memory is still 96.5MB. Free memory was 63.4MB in the beginning and 69.5MB in the end (delta: -6.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.41ms. Allocated memory is still 96.5MB. Free memory was 69.5MB in the beginning and 67.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.23ms. Allocated memory is still 96.5MB. Free memory was 67.4MB in the beginning and 65.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1052.73ms. Allocated memory was 96.5MB in the beginning and 117.4MB in the end (delta: 21.0MB). Free memory was 65.6MB in the beginning and 73.6MB in the end (delta: -8.0MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. * TraceAbstraction took 323.36ms. Allocated memory is still 117.4MB. Free memory was 72.6MB in the beginning and 58.4MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 4.86ms. Allocated memory is still 117.4MB. Free memory was 58.4MB in the beginning and 57.9MB in the end (delta: 514.0kB). 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: [L322] COND TRUE __VERIFIER_nondet_int() [L323] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) [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 < 1.398f) 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, 45 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2022-11-19 06:56:54,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0fdb430a563564dba34d4fe6c6ffeed490245913891172fda591ae44bb309801 --- 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-8393723 [2022-11-19 06:56:56,891 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:56:56,893 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:56:56,914 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:56:56,915 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:56:56,916 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:56:56,917 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:56:56,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:56:56,921 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:56:56,923 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:56:56,924 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:56:56,925 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:56:56,926 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:56:56,927 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:56:56,928 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:56:56,929 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:56:56,930 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:56:56,932 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:56:56,933 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:56:56,936 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:56:56,937 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:56:56,939 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:56:56,940 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:56:56,942 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:56:56,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:56:56,952 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:56:56,952 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:56:56,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:56:56,954 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:56:56,955 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:56:56,956 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:56:56,957 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:56:56,958 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:56:56,959 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:56:56,960 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:56:56,960 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:56:56,961 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:56:56,962 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:56:56,962 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:56:56,963 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:56:56,964 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:56:56,965 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-19 06:56:57,003 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:56:57,008 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:56:57,009 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:56:57,010 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:56:57,011 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:56:57,011 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:56:57,011 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:56:57,011 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:56:57,012 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:56:57,012 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:56:57,013 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:56:57,013 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:56:57,014 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:56:57,015 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 06:56:57,015 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 06:56:57,016 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:56:57,016 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:56:57,016 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:56:57,016 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:56:57,016 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 06:56:57,017 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 06:56:57,017 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 06:56:57,017 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 06:56:57,017 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:56:57,017 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:56:57,018 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:56:57,018 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:56:57,018 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 06:56:57,018 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:56:57,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:56:57,019 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:56:57,019 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:56:57,019 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:56:57,020 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 06:56:57,020 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 06:56:57,020 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:56:57,020 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:56:57,021 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 06:56:57,021 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_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fdb430a563564dba34d4fe6c6ffeed490245913891172fda591ae44bb309801 [2022-11-19 06:56:57,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:56:57,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:56:57,413 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:56:57,414 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:56:57,415 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:56:57,418 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c [2022-11-19 06:56:57,501 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/data/1e3b15b6c/e3d33d8855f54c70b8f542184cfb4e1c/FLAGedb5d413d [2022-11-19 06:56:58,068 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:56:58,068 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c [2022-11-19 06:56:58,077 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/data/1e3b15b6c/e3d33d8855f54c70b8f542184cfb4e1c/FLAGedb5d413d [2022-11-19 06:56:58,421 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/data/1e3b15b6c/e3d33d8855f54c70b8f542184cfb4e1c [2022-11-19 06:56:58,427 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:56:58,428 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:56:58,434 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:56:58,435 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:56:58,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:56:58,439 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:56:58" (1/1) ... [2022-11-19 06:56:58,440 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74162917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:58, skipping insertion in model container [2022-11-19 06:56:58,441 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:56:58" (1/1) ... [2022-11-19 06:56:58,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:56:58,471 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:56:58,624 WARN L234 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_480ec500-054c-4695-82ba-7366a683ac0b/sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c[1997,2010] [2022-11-19 06:56:58,630 WARN L234 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_480ec500-054c-4695-82ba-7366a683ac0b/sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c[2366,2379] [2022-11-19 06:56:58,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:56:58,705 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:56:58,752 WARN L234 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_480ec500-054c-4695-82ba-7366a683ac0b/sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c[1997,2010] [2022-11-19 06:56:58,754 WARN L234 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_480ec500-054c-4695-82ba-7366a683ac0b/sv-benchmarks/c/combinations/square_2+soft_float_2a.c.cil.c[2366,2379] [2022-11-19 06:56:58,781 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:56:58,796 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:56:58,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:58 WrapperNode [2022-11-19 06:56:58,797 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:56:58,798 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:56:58,798 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:56:58,798 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:56:58,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:58" (1/1) ... [2022-11-19 06:56:58,817 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:58" (1/1) ... [2022-11-19 06:56:58,840 INFO L138 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 129 [2022-11-19 06:56:58,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:56:58,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:56:58,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:56:58,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:56:58,851 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:58" (1/1) ... [2022-11-19 06:56:58,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:58" (1/1) ... [2022-11-19 06:56:58,855 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:58" (1/1) ... [2022-11-19 06:56:58,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:58" (1/1) ... [2022-11-19 06:56:58,863 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:58" (1/1) ... [2022-11-19 06:56:58,868 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:58" (1/1) ... [2022-11-19 06:56:58,870 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:58" (1/1) ... [2022-11-19 06:56:58,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:58" (1/1) ... [2022-11-19 06:56:58,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:56:58,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:56:58,877 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:56:58,877 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:56:58,878 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:58" (1/1) ... [2022-11-19 06:56:58,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:56:58,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:56:58,916 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:56:58,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:56:58,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:56:58,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-19 06:56:58,966 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-11-19 06:56:58,966 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-11-19 06:56:58,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:56:58,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:56:58,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 06:56:58,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 06:56:59,055 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:56:59,058 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:57:01,760 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:57:01,767 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:57:01,768 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 06:57:01,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:57:01 BoogieIcfgContainer [2022-11-19 06:57:01,770 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:57:01,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:57:01,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:57:01,775 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:57:01,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:56:58" (1/3) ... [2022-11-19 06:57:01,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55b5ad7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:57:01, skipping insertion in model container [2022-11-19 06:57:01,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:58" (2/3) ... [2022-11-19 06:57:01,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55b5ad7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:57:01, skipping insertion in model container [2022-11-19 06:57:01,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:57:01" (3/3) ... [2022-11-19 06:57:01,778 INFO L112 eAbstractionObserver]: Analyzing ICFG square_2+soft_float_2a.c.cil.c [2022-11-19 06:57:01,797 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:57:01,797 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-19 06:57:01,849 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:57:01,855 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=FINITE_AUTOMATA, 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;@4045941e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:57:01,856 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-19 06:57:01,860 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 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) [2022-11-19 06:57:01,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-19 06:57:01,869 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:57:01,870 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:57:01,872 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:57:01,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:57:01,883 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2022-11-19 06:57:01,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 06:57:01,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [793529324] [2022-11-19 06:57:01,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:57:01,897 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 06:57:01,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 06:57:01,907 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 06:57:01,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-19 06:57:02,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:57:02,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-19 06:57:02,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:57:02,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:57:02,608 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:57:02,609 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 06:57:02,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [793529324] [2022-11-19 06:57:02,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [793529324] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:57:02,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:57:02,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:57:02,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889288166] [2022-11-19 06:57:02,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:57:02,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 06:57:02,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 06:57:02,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 06:57:02,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 06:57:02,650 INFO L87 Difference]: Start difference. First operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 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) [2022-11-19 06:57:02,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:57:02,677 INFO L93 Difference]: Finished difference Result 117 states and 175 transitions. [2022-11-19 06:57:02,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 06:57:02,680 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 [2022-11-19 06:57:02,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:57:02,688 INFO L225 Difference]: With dead ends: 117 [2022-11-19 06:57:02,688 INFO L226 Difference]: Without dead ends: 52 [2022-11-19 06:57:02,692 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 [2022-11-19 06:57:02,696 INFO L413 NwaCegarLoop]: 82 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, 82 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 [2022-11-19 06:57:02,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 06:57:02,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-19 06:57:02,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-11-19 06:57:02,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 45 states have internal predecessors, (62), 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) [2022-11-19 06:57:02,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2022-11-19 06:57:02,758 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 7 [2022-11-19 06:57:02,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:57:02,759 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2022-11-19 06:57:02,759 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) [2022-11-19 06:57:02,760 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2022-11-19 06:57:02,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-19 06:57:02,762 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:57:02,762 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:57:02,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-19 06:57:02,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 06:57:02,965 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:57:02,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:57:02,967 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2022-11-19 06:57:02,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 06:57:02,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [584116915] [2022-11-19 06:57:02,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:57:02,968 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 06:57:02,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 06:57:02,979 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 06:57:02,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-19 06:57:37,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 06:57:37,610 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 06:58:15,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 06:58:15,682 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-19 06:58:15,682 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 06:58:15,684 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-19 06:58:15,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-11-19 06:58:15,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-19 06:58:15,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 06:58:15,891 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-19 06:58:15,895 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 06:58:15,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:58:15 BoogieIcfgContainer [2022-11-19 06:58:15,918 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 06:58:15,918 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 06:58:15,919 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 06:58:15,919 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 06:58:15,919 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:57:01" (3/4) ... [2022-11-19 06:58:15,922 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-19 06:58:15,956 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 06:58:15,956 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 06:58:15,957 INFO L158 Benchmark]: Toolchain (without parser) took 77528.52ms. Allocated memory was 60.8MB in the beginning and 79.7MB in the end (delta: 18.9MB). Free memory was 38.9MB in the beginning and 45.5MB in the end (delta: -6.6MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2022-11-19 06:58:15,958 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 60.8MB. Free memory was 41.5MB in the beginning and 41.5MB in the end (delta: 28.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:58:15,958 INFO L158 Benchmark]: CACSL2BoogieTranslator took 362.76ms. Allocated memory is still 60.8MB. Free memory was 38.7MB in the beginning and 41.4MB in the end (delta: -2.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-19 06:58:15,959 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.56ms. Allocated memory is still 60.8MB. Free memory was 41.2MB in the beginning and 39.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:58:15,959 INFO L158 Benchmark]: Boogie Preprocessor took 34.84ms. Allocated memory is still 60.8MB. Free memory was 39.4MB in the beginning and 37.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:58:15,960 INFO L158 Benchmark]: RCFGBuilder took 2893.64ms. Allocated memory is still 60.8MB. Free memory was 37.4MB in the beginning and 37.9MB in the end (delta: -509.4kB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2022-11-19 06:58:15,960 INFO L158 Benchmark]: TraceAbstraction took 74145.83ms. Allocated memory was 60.8MB in the beginning and 79.7MB in the end (delta: 18.9MB). Free memory was 37.2MB in the beginning and 47.3MB in the end (delta: -10.0MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2022-11-19 06:58:15,961 INFO L158 Benchmark]: Witness Printer took 37.85ms. Allocated memory is still 79.7MB. Free memory was 47.3MB in the beginning and 45.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 06:58:15,964 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 60.8MB. Free memory was 41.5MB in the beginning and 41.5MB in the end (delta: 28.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 362.76ms. Allocated memory is still 60.8MB. Free memory was 38.7MB in the beginning and 41.4MB in the end (delta: -2.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.56ms. Allocated memory is still 60.8MB. Free memory was 41.2MB in the beginning and 39.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.84ms. Allocated memory is still 60.8MB. Free memory was 39.4MB in the beginning and 37.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2893.64ms. Allocated memory is still 60.8MB. Free memory was 37.4MB in the beginning and 37.9MB in the end (delta: -509.4kB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. * TraceAbstraction took 74145.83ms. Allocated memory was 60.8MB in the beginning and 79.7MB in the end (delta: 18.9MB). Free memory was 37.2MB in the beginning and 47.3MB in the end (delta: -10.0MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. * Witness Printer took 37.85ms. Allocated memory is still 79.7MB. Free memory was 47.3MB in the beginning and 45.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. 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 - CounterExampleResult [Line: 48]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L322] COND TRUE __VERIFIER_nondet_int() [L323] 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=0.9999997615814209, result=1.3984375, x=0.9999997615814209] [L47] COND TRUE !(result >= 0.0f && result < 1.398f) VAL [IN=0.9999997615814209, result=1.3984375, x=0.9999997615814209] [L48] reach_error() VAL [IN=0.9999997615814209, result=1.3984375, x=0.9999997615814209] - 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, 61 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 74.1s, 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, 82 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, 82 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred 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, 35.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 22 ConjunctsInSsa, 1 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 proved your program to be incorrect! [2022-11-19 06:58:16,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480ec500-054c-4695-82ba-7366a683ac0b/bin/utaipan-I9t0OCRTmS/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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE