/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/bitvector/soft_float_4-3a.c.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 01:32:25,061 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 01:32:25,066 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 01:32:25,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-22 01:32:25,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 01:32:25,122 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 01:32:25,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 01:32:25,125 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 01:32:25,126 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 01:32:25,127 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 01:32:25,129 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 01:32:25,132 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 01:32:25,134 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 01:32:25,136 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 01:32:25,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 01:32:25,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 01:32:25,142 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-22 01:32:25,153 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 01:32:25,154 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 01:32:25,155 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 01:32:25,160 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 01:32:25,184 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 01:32:25,184 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 01:32:25,186 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 01:32:25,186 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 01:32:25,186 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 01:32:25,187 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 01:32:25,187 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 01:32:25,187 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 01:32:25,187 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 01:32:25,188 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 01:32:25,188 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 01:32:25,188 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 01:32:25,188 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 01:32:25,189 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 01:32:25,189 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 01:32:25,189 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 01:32:25,190 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 01:32:25,190 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 01:32:25,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 01:32:25,190 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 01:32:25,191 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 01:32:25,191 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 01:32:25,191 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 01:32:25,191 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 01:32:25,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 01:32:25,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 01:32:25,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 01:32:25,637 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 01:32:25,638 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 01:32:25,640 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/soft_float_4-3a.c.cil.c [2021-02-22 01:32:25,717 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c643f7019/b61148ca42844e05b7758ed563f5693c/FLAG7ebfaa19d [2021-02-22 01:32:26,459 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 01:32:26,460 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/soft_float_4-3a.c.cil.c [2021-02-22 01:32:26,480 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c643f7019/b61148ca42844e05b7758ed563f5693c/FLAG7ebfaa19d [2021-02-22 01:32:26,763 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c643f7019/b61148ca42844e05b7758ed563f5693c [2021-02-22 01:32:26,766 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 01:32:26,783 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 01:32:26,788 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 01:32:26,788 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 01:32:26,792 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 01:32:26,793 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:32:26" (1/1) ... [2021-02-22 01:32:26,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c9d3681 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:32:26, skipping insertion in model container [2021-02-22 01:32:26,794 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:32:26" (1/1) ... [2021-02-22 01:32:26,803 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 01:32:26,851 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 01:32:27,027 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/soft_float_4-3a.c.cil.c[425,438] [2021-02-22 01:32:27,145 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:32:27,158 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 01:32:27,174 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/soft_float_4-3a.c.cil.c[425,438] [2021-02-22 01:32:27,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:32:27,254 INFO L208 MainTranslator]: Completed translation [2021-02-22 01:32:27,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:32:27 WrapperNode [2021-02-22 01:32:27,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 01:32:27,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 01:32:27,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 01:32:27,257 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 01:32:27,274 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:32:27" (1/1) ... [2021-02-22 01:32:27,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:32:27" (1/1) ... [2021-02-22 01:32:27,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:32:27" (1/1) ... [2021-02-22 01:32:27,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:32:27" (1/1) ... [2021-02-22 01:32:27,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:32:27" (1/1) ... [2021-02-22 01:32:27,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:32:27" (1/1) ... [2021-02-22 01:32:27,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:32:27" (1/1) ... [2021-02-22 01:32:27,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 01:32:27,364 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 01:32:27,364 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 01:32:27,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 01:32:27,366 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:32:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 01:32:27,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 01:32:27,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 01:32:27,494 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 01:32:27,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-22 01:32:27,494 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2021-02-22 01:32:27,494 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2021-02-22 01:32:27,495 INFO L138 BoogieDeclarations]: Found implementation of procedure mulflt [2021-02-22 01:32:27,495 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 01:32:27,495 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 01:32:27,496 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 01:32:27,496 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 01:32:27,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 01:32:27,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2021-02-22 01:32:27,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2021-02-22 01:32:27,498 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-22 01:32:27,498 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2021-02-22 01:32:27,498 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2021-02-22 01:32:27,499 INFO L130 BoogieDeclarations]: Found specification of procedure mulflt [2021-02-22 01:32:27,499 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 01:32:27,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 01:32:27,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 01:32:27,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 01:32:27,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 01:32:27,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 01:32:27,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 01:32:28,598 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 01:32:28,598 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-02-22 01:32:28,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:32:28 BoogieIcfgContainer [2021-02-22 01:32:28,602 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 01:32:28,604 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 01:32:28,604 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 01:32:28,608 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 01:32:28,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 01:32:26" (1/3) ... [2021-02-22 01:32:28,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38eb11a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:32:28, skipping insertion in model container [2021-02-22 01:32:28,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:32:27" (2/3) ... [2021-02-22 01:32:28,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38eb11a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:32:28, skipping insertion in model container [2021-02-22 01:32:28,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:32:28" (3/3) ... [2021-02-22 01:32:28,612 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_4-3a.c.cil.c [2021-02-22 01:32:28,620 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 01:32:28,626 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 01:32:28,645 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 01:32:28,671 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 01:32:28,671 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 01:32:28,671 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 01:32:28,671 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 01:32:28,672 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 01:32:28,672 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 01:32:28,672 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 01:32:28,672 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 01:32:28,692 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states. [2021-02-22 01:32:28,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-02-22 01:32:28,707 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:32:28,709 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 01:32:28,709 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:32:28,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:32:28,716 INFO L82 PathProgramCache]: Analyzing trace with hash -535224117, now seen corresponding path program 1 times [2021-02-22 01:32:28,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:32:28,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [760445723] [2021-02-22 01:32:28,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:32:28,808 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:32:28,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:32:29,114 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:29,115 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:32:29,116 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:29,117 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:32:29,130 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:29,131 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:32:29,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:29,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:32:29,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:29,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:32:29,168 WARN L141 QuantifierPusher]: treesize reduction 10, result has 79.2 percent of original size [2021-02-22 01:32:29,171 WARN L147 QuantifierPusher]: treesize reduction 10, result has 79.2 percent of original size 38 [2021-02-22 01:32:29,189 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.7 percent of original size [2021-02-22 01:32:29,192 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.7 percent of original size 36 [2021-02-22 01:32:29,195 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:29,196 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:32:29,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:32:29,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:32:29,247 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:29,248 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:32:29,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-22 01:32:29,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:32:29,257 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:29,257 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:32:29,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-02-22 01:32:29,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:32:29,265 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:29,266 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:32:29,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-02-22 01:32:29,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:32:29,286 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:29,287 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:32:29,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:29,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:32:29,319 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:29,322 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:32:29,386 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-02-22 01:32:29,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [760445723] [2021-02-22 01:32:29,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:32:29,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-22 01:32:29,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260749038] [2021-02-22 01:32:29,395 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-22 01:32:29,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:32:29,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-22 01:32:29,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-02-22 01:32:29,415 INFO L87 Difference]: Start difference. First operand 139 states. Second operand 9 states. [2021-02-22 01:32:30,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:32:30,751 INFO L93 Difference]: Finished difference Result 268 states and 333 transitions. [2021-02-22 01:32:30,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-22 01:32:30,756 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 89 [2021-02-22 01:32:30,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:32:30,790 INFO L225 Difference]: With dead ends: 268 [2021-02-22 01:32:30,790 INFO L226 Difference]: Without dead ends: 158 [2021-02-22 01:32:30,798 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2021-02-22 01:32:30,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-02-22 01:32:30,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 146. [2021-02-22 01:32:30,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2021-02-22 01:32:30,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 166 transitions. [2021-02-22 01:32:30,891 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 166 transitions. Word has length 89 [2021-02-22 01:32:30,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:32:30,892 INFO L480 AbstractCegarLoop]: Abstraction has 146 states and 166 transitions. [2021-02-22 01:32:30,892 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-22 01:32:30,893 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 166 transitions. [2021-02-22 01:32:30,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-02-22 01:32:30,898 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:32:30,902 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 01:32:30,903 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 01:32:30,903 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:32:30,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:32:30,905 INFO L82 PathProgramCache]: Analyzing trace with hash 2082711503, now seen corresponding path program 1 times [2021-02-22 01:32:30,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:32:30,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1731085052] [2021-02-22 01:32:30,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:32:30,911 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:32:31,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:32:31,108 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:31,109 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:32:31,110 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:31,111 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:32:31,115 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:31,116 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:32:31,121 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:31,122 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:32:31,143 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:31,144 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:32:31,155 WARN L141 QuantifierPusher]: treesize reduction 11, result has 84.9 percent of original size [2021-02-22 01:32:31,158 WARN L147 QuantifierPusher]: treesize reduction 11, result has 84.9 percent of original size 62 [2021-02-22 01:32:31,224 WARN L141 QuantifierPusher]: treesize reduction 2, result has 96.3 percent of original size [2021-02-22 01:32:31,227 WARN L147 QuantifierPusher]: treesize reduction 2, result has 96.3 percent of original size 52 [2021-02-22 01:32:31,230 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:31,231 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:32:31,232 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:31,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:32:31,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:32:31,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:32:31,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:31,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:32:31,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-22 01:32:31,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:32:31,318 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:31,319 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:32:31,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-02-22 01:32:31,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:32:31,345 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:31,346 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:32:31,347 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:31,348 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:32:31,362 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:31,363 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:32:31,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-02-22 01:32:31,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:32:31,408 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:31,410 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:32:31,426 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-02-22 01:32:31,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1731085052] [2021-02-22 01:32:31,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:32:31,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-22 01:32:31,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512439063] [2021-02-22 01:32:31,430 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-22 01:32:31,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:32:31,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-22 01:32:31,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-02-22 01:32:31,432 INFO L87 Difference]: Start difference. First operand 146 states and 166 transitions. Second operand 10 states. [2021-02-22 01:32:32,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:32:32,769 INFO L93 Difference]: Finished difference Result 288 states and 332 transitions. [2021-02-22 01:32:32,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-22 01:32:32,769 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 93 [2021-02-22 01:32:32,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:32:32,774 INFO L225 Difference]: With dead ends: 288 [2021-02-22 01:32:32,774 INFO L226 Difference]: Without dead ends: 229 [2021-02-22 01:32:32,776 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2021-02-22 01:32:32,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2021-02-22 01:32:32,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 194. [2021-02-22 01:32:32,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2021-02-22 01:32:32,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 224 transitions. [2021-02-22 01:32:32,826 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 224 transitions. Word has length 93 [2021-02-22 01:32:32,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:32:32,827 INFO L480 AbstractCegarLoop]: Abstraction has 194 states and 224 transitions. [2021-02-22 01:32:32,827 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-22 01:32:32,827 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 224 transitions. [2021-02-22 01:32:32,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-02-22 01:32:32,832 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:32:32,832 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 01:32:32,832 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-22 01:32:32,833 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:32:32,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:32:32,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1979221695, now seen corresponding path program 1 times [2021-02-22 01:32:32,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:32:32,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1865902346] [2021-02-22 01:32:32,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:32:32,837 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:32:32,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:32:32,933 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:32,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:32:32,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:32,938 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:32:32,944 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:32,946 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:32:32,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:32,955 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:32:32,964 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:32,966 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:32:32,976 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:32,979 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:32:32,987 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:32,989 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:32:32,999 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.7 percent of original size [2021-02-22 01:32:33,000 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.7 percent of original size 36 [2021-02-22 01:32:33,002 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:33,003 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:32:33,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:32:33,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:32:33,045 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:33,046 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:32:33,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-22 01:32:33,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:32:33,050 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:33,051 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:32:33,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-02-22 01:32:33,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:32:33,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:33,061 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:32:33,062 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:33,063 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:32:33,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:33,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:32:33,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-02-22 01:32:33,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:32:33,101 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:33,102 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:32:33,112 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-02-22 01:32:33,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1865902346] [2021-02-22 01:32:33,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:32:33,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-22 01:32:33,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561390684] [2021-02-22 01:32:33,113 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-22 01:32:33,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:32:33,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-22 01:32:33,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-02-22 01:32:33,115 INFO L87 Difference]: Start difference. First operand 194 states and 224 transitions. Second operand 11 states. [2021-02-22 01:32:34,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:32:34,429 INFO L93 Difference]: Finished difference Result 291 states and 333 transitions. [2021-02-22 01:32:34,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-22 01:32:34,430 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 96 [2021-02-22 01:32:34,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:32:34,434 INFO L225 Difference]: With dead ends: 291 [2021-02-22 01:32:34,434 INFO L226 Difference]: Without dead ends: 207 [2021-02-22 01:32:34,437 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2021-02-22 01:32:34,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2021-02-22 01:32:34,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 171. [2021-02-22 01:32:34,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2021-02-22 01:32:34,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 194 transitions. [2021-02-22 01:32:34,478 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 194 transitions. Word has length 96 [2021-02-22 01:32:34,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:32:34,479 INFO L480 AbstractCegarLoop]: Abstraction has 171 states and 194 transitions. [2021-02-22 01:32:34,479 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-22 01:32:34,479 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 194 transitions. [2021-02-22 01:32:34,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-02-22 01:32:34,484 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:32:34,484 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 01:32:34,484 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-22 01:32:34,484 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:32:34,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:32:34,485 INFO L82 PathProgramCache]: Analyzing trace with hash -1035810605, now seen corresponding path program 2 times [2021-02-22 01:32:34,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:32:34,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [289285768] [2021-02-22 01:32:34,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:32:34,488 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:32:34,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:32:34,593 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:34,594 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:32:34,595 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:34,596 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:32:34,602 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:34,603 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:32:34,610 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:34,611 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 01:32:34,622 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:34,624 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 01:32:34,637 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:34,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-22 01:32:34,660 WARN L141 QuantifierPusher]: treesize reduction 15, result has 72.7 percent of original size [2021-02-22 01:32:34,661 WARN L147 QuantifierPusher]: treesize reduction 15, result has 72.7 percent of original size 40 [2021-02-22 01:32:34,708 WARN L141 QuantifierPusher]: treesize reduction 16, result has 79.2 percent of original size [2021-02-22 01:32:34,712 WARN L147 QuantifierPusher]: treesize reduction 16, result has 79.2 percent of original size 61 [2021-02-22 01:32:34,771 WARN L141 QuantifierPusher]: treesize reduction 1, result has 96.9 percent of original size [2021-02-22 01:32:34,773 WARN L147 QuantifierPusher]: treesize reduction 1, result has 96.9 percent of original size 31 [2021-02-22 01:32:34,809 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:34,812 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 01:32:34,827 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:34,828 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:32:34,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:34,844 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:32:34,862 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:34,862 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:32:34,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:32:34,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:32:34,913 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:34,913 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:32:34,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-02-22 01:32:34,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:32:34,918 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:34,918 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:32:34,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-02-22 01:32:34,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:32:34,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:34,930 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:32:34,931 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:34,932 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:32:34,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:34,958 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:32:34,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-02-22 01:32:34,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:32:34,991 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:34,991 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:32:34,992 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:34,993 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:32:34,994 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:34,995 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 01:32:35,027 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-02-22 01:32:35,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [289285768] [2021-02-22 01:32:35,029 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:32:35,029 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-02-22 01:32:35,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97618044] [2021-02-22 01:32:35,029 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-02-22 01:32:35,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:32:35,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-02-22 01:32:35,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2021-02-22 01:32:35,037 INFO L87 Difference]: Start difference. First operand 171 states and 194 transitions. Second operand 16 states. [2021-02-22 01:32:38,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:32:38,086 INFO L93 Difference]: Finished difference Result 314 states and 371 transitions. [2021-02-22 01:32:38,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-22 01:32:38,087 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 97 [2021-02-22 01:32:38,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:32:38,091 INFO L225 Difference]: With dead ends: 314 [2021-02-22 01:32:38,091 INFO L226 Difference]: Without dead ends: 255 [2021-02-22 01:32:38,093 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=132, Invalid=860, Unknown=0, NotChecked=0, Total=992 [2021-02-22 01:32:38,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2021-02-22 01:32:38,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 225. [2021-02-22 01:32:38,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2021-02-22 01:32:38,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 261 transitions. [2021-02-22 01:32:38,157 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 261 transitions. Word has length 97 [2021-02-22 01:32:38,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:32:38,158 INFO L480 AbstractCegarLoop]: Abstraction has 225 states and 261 transitions. [2021-02-22 01:32:38,158 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-02-22 01:32:38,158 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 261 transitions. [2021-02-22 01:32:38,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-02-22 01:32:38,162 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:32:38,162 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 01:32:38,162 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-22 01:32:38,163 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:32:38,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:32:38,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1400683195, now seen corresponding path program 1 times [2021-02-22 01:32:38,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:32:38,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1751600285] [2021-02-22 01:32:38,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:32:38,166 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:32:38,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 01:32:38,195 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 01:32:38,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 01:32:38,225 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 01:32:38,267 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-22 01:32:38,267 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-22 01:32:38,268 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-22 01:32:38,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 01:32:38 BoogieIcfgContainer [2021-02-22 01:32:38,293 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 01:32:38,295 INFO L168 Benchmark]: Toolchain (without parser) took 11526.57 ms. Allocated memory was 151.0 MB in the beginning and 262.1 MB in the end (delta: 111.1 MB). Free memory was 127.7 MB in the beginning and 92.6 MB in the end (delta: 35.1 MB). Peak memory consumption was 147.5 MB. Max. memory is 8.0 GB. [2021-02-22 01:32:38,295 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 127.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 01:32:38,296 INFO L168 Benchmark]: CACSL2BoogieTranslator took 467.59 ms. Allocated memory is still 151.0 MB. Free memory was 126.4 MB in the beginning and 114.0 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-02-22 01:32:38,297 INFO L168 Benchmark]: Boogie Preprocessor took 100.64 ms. Allocated memory is still 151.0 MB. Free memory was 114.0 MB in the beginning and 112.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-22 01:32:38,297 INFO L168 Benchmark]: RCFGBuilder took 1237.87 ms. Allocated memory is still 151.0 MB. Free memory was 112.0 MB in the beginning and 112.2 MB in the end (delta: -234.0 kB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-02-22 01:32:38,298 INFO L168 Benchmark]: TraceAbstraction took 9689.53 ms. Allocated memory was 151.0 MB in the beginning and 262.1 MB in the end (delta: 111.1 MB). Free memory was 111.7 MB in the beginning and 92.6 MB in the end (delta: 19.1 MB). Peak memory consumption was 131.8 MB. Max. memory is 8.0 GB. [2021-02-22 01:32:38,301 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory is still 127.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 467.59 ms. Allocated memory is still 151.0 MB. Free memory was 126.4 MB in the beginning and 114.0 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 100.64 ms. Allocated memory is still 151.0 MB. Free memory was 114.0 MB in the beginning and 112.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1237.87 ms. Allocated memory is still 151.0 MB. Free memory was 112.0 MB in the beginning and 112.2 MB in the end (delta: -234.0 kB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 9689.53 ms. Allocated memory was 151.0 MB in the beginning and 262.1 MB in the end (delta: 111.1 MB). Free memory was 111.7 MB in the beginning and 92.6 MB in the end (delta: 19.1 MB). Peak memory consumption was 131.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 9]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 105, overapproximation of bitwiseAnd at line 103. Possible FailurePath: [L218] unsigned int a ; [L219] unsigned int ma = __VERIFIER_nondet_uint(); [L220] signed char ea = __VERIFIER_nondet_char(); [L221] unsigned int b ; [L222] unsigned int mb = __VERIFIER_nondet_uint(); [L223] signed char eb = __VERIFIER_nondet_char(); [L224] unsigned int r_add1 ; [L225] unsigned int r_add2 ; [L226] unsigned int zero ; [L227] int tmp ; [L228] int tmp___0 ; [L229] int __retres14 ; [L233] CALL, EXPR base2flt(0, 0) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND TRUE ! m [L22] __retres4 = 0U [L72] return (__retres4); [L233] RET, EXPR base2flt(0, 0) [L233] zero = base2flt(0, 0) [L234] CALL, EXPR base2flt(ma, ea) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND FALSE !(m < 1U << 24U) [L49] COND TRUE 1 [L51] COND TRUE m >= 1U << 25U [L56] COND TRUE e >= 127 [L57] __retres4 = 4294967295U [L72] return (__retres4); [L234] RET, EXPR base2flt(ma, ea) [L234] a = base2flt(ma, ea) [L235] CALL, EXPR base2flt(mb, eb) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND FALSE !(m < 1U << 24U) [L49] COND TRUE 1 [L51] COND FALSE !(m >= 1U << 25U) [L68] m = m & ~ (1U << 24U) [L69] res = m | ((unsigned int )(e + 128) << 24U) [L70] __retres4 = res [L72] return (__retres4); [L235] RET, EXPR base2flt(mb, eb) [L235] b = base2flt(mb, eb) [L236] CALL addflt(a, b) [L76] unsigned int res ; [L77] unsigned int ma ; [L78] unsigned int mb ; [L79] unsigned int delta ; [L80] int ea ; [L81] int eb ; [L82] unsigned int tmp ; [L83] unsigned int __retres10 ; [L86] COND FALSE !(a < b) [L93] COND FALSE !(! b) [L100] ma = a & ((1U << 24U) - 1U) [L101] ea = (int )(a >> 24U) - 128 [L102] ma = ma | (1U << 24U) [L103] mb = b & ((1U << 24U) - 1U) [L104] eb = (int )(b >> 24U) - 128 [L105] mb = mb | (1U << 24U) [L106] CALL __VERIFIER_assert(ea >= eb) [L8] COND TRUE !(cond) [L9] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 181 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.6s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 610 SDtfs, 883 SDslu, 816 SDs, 0 SdLazy, 5201 SolverSat, 119 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 125 GetRequests, 42 SyntacticMatches, 4 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=225occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 113 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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 Received shutdown request...