/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/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loops/sum03-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-a47f07a [2021-04-16 06:45:42,155 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-16 06:45:42,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-16 06:45:42,187 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-16 06:45:42,203 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-16 06:45:42,204 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-16 06:45:42,205 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-16 06:45:42,206 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-16 06:45:42,208 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-16 06:45:42,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-16 06:45:42,211 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-16 06:45:42,217 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-16 06:45:42,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-16 06:45:42,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-16 06:45:42,221 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-16 06:45:42,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-16 06:45:42,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-16 06:45:42,232 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-16 06:45:42,233 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-16 06:45:42,233 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-16 06:45:42,236 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2021-04-16 06:45:42,248 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-16 06:45:42,248 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-16 06:45:42,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-16 06:45:42,251 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-16 06:45:42,251 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-16 06:45:42,251 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-16 06:45:42,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-16 06:45:42,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-16 06:45:42,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-16 06:45:42,251 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-16 06:45:42,252 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-16 06:45:42,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-16 06:45:42,252 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-16 06:45:42,252 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-16 06:45:42,252 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-16 06:45:42,252 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-16 06:45:42,253 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-16 06:45:42,253 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-16 06:45:42,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-16 06:45:42,253 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-16 06:45:42,253 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-04-16 06:45:42,253 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-04-16 06:45:42,253 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2021-04-16 06:45:42,253 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-16 06:45:42,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-16 06:45:42,518 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-16 06:45:42,520 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-16 06:45:42,521 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-16 06:45:42,522 INFO L275 PluginConnector]: CDTParser initialized [2021-04-16 06:45:42,522 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/sum03-1.i [2021-04-16 06:45:42,569 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e54ca8b48/023f1ae39f004d4992bab98ba48b5260/FLAGeaba7a8a4 [2021-04-16 06:45:42,892 INFO L306 CDTParser]: Found 1 translation units. [2021-04-16 06:45:42,892 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/sum03-1.i [2021-04-16 06:45:42,897 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e54ca8b48/023f1ae39f004d4992bab98ba48b5260/FLAGeaba7a8a4 [2021-04-16 06:45:43,317 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e54ca8b48/023f1ae39f004d4992bab98ba48b5260 [2021-04-16 06:45:43,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-16 06:45:43,320 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-04-16 06:45:43,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-16 06:45:43,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-16 06:45:43,326 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-16 06:45:43,327 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 06:45:43" (1/1) ... [2021-04-16 06:45:43,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@719ebed2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 06:45:43, skipping insertion in model container [2021-04-16 06:45:43,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 06:45:43" (1/1) ... [2021-04-16 06:45:43,332 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-16 06:45:43,347 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-16 06:45:43,434 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/sum03-1.i[807,820] [2021-04-16 06:45:43,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 06:45:43,447 INFO L203 MainTranslator]: Completed pre-run [2021-04-16 06:45:43,455 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/sum03-1.i[807,820] [2021-04-16 06:45:43,457 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 06:45:43,466 INFO L208 MainTranslator]: Completed translation [2021-04-16 06:45:43,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 06:45:43 WrapperNode [2021-04-16 06:45:43,486 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-16 06:45:43,487 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-16 06:45:43,487 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-16 06:45:43,487 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-16 06:45:43,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 06:45:43" (1/1) ... [2021-04-16 06:45:43,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 06:45:43" (1/1) ... [2021-04-16 06:45:43,515 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 06:45:43" (1/1) ... [2021-04-16 06:45:43,515 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 06:45:43" (1/1) ... [2021-04-16 06:45:43,519 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 06:45:43" (1/1) ... [2021-04-16 06:45:43,522 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 06:45:43" (1/1) ... [2021-04-16 06:45:43,522 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 06:45:43" (1/1) ... [2021-04-16 06:45:43,523 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-16 06:45:43,524 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-16 06:45:43,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-16 06:45:43,524 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-16 06:45:43,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 06:45:43" (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 [2021-04-16 06:45:43,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-04-16 06:45:43,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-16 06:45:43,575 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-04-16 06:45:43,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-04-16 06:45:43,576 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-04-16 06:45:43,576 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-04-16 06:45:43,576 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-04-16 06:45:43,576 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-04-16 06:45:43,576 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-04-16 06:45:43,576 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-04-16 06:45:43,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-16 06:45:43,576 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-04-16 06:45:43,576 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2021-04-16 06:45:43,576 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-04-16 06:45:43,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-04-16 06:45:43,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-16 06:45:43,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-16 06:45:43,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-16 06:45:43,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-04-16 06:45:43,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-16 06:45:43,778 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-16 06:45:43,778 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-04-16 06:45:43,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 06:45:43 BoogieIcfgContainer [2021-04-16 06:45:43,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-16 06:45:43,780 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-16 06:45:43,781 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-16 06:45:43,783 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-16 06:45:43,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.04 06:45:43" (1/3) ... [2021-04-16 06:45:43,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@346d6f3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 06:45:43, skipping insertion in model container [2021-04-16 06:45:43,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 06:45:43" (2/3) ... [2021-04-16 06:45:43,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@346d6f3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 06:45:43, skipping insertion in model container [2021-04-16 06:45:43,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 06:45:43" (3/3) ... [2021-04-16 06:45:43,797 INFO L111 eAbstractionObserver]: Analyzing ICFG sum03-1.i [2021-04-16 06:45:43,809 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-04-16 06:45:43,812 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-16 06:45:43,824 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-04-16 06:45:43,846 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-16 06:45:43,846 INFO L377 AbstractCegarLoop]: Hoare is true [2021-04-16 06:45:43,847 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-04-16 06:45:43,847 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-16 06:45:43,847 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-16 06:45:43,847 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-16 06:45:43,847 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-16 06:45:43,847 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-16 06:45:43,870 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 14 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-04-16 06:45:43,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-04-16 06:45:43,874 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 06:45:43,875 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 06:45:43,875 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 06:45:43,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 06:45:43,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1946695220, now seen corresponding path program 1 times [2021-04-16 06:45:43,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 06:45:43,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1550396948] [2021-04-16 06:45:43,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 06:45:43,926 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-04-16 06:45:43,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 06:45:44,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:45:44,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 06:45:44,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:45:44,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-16 06:45:44,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:45:44,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-16 06:45:44,115 INFO L142 QuantifierPusher]: treesize reduction 23, result has 82.4 percent of original size [2021-04-16 06:45:44,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-04-16 06:45:44,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:45:44,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 06:45:44,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:45:44,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 06:45:44,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:45:44,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 06:45:44,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 06:45:44,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 06:45:44,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:45:44,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 06:45:44,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 06:45:44,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1550396948] [2021-04-16 06:45:44,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 06:45:44,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-04-16 06:45:44,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185489201] [2021-04-16 06:45:44,240 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-04-16 06:45:44,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 06:45:44,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-04-16 06:45:44,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-04-16 06:45:44,250 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 14 states have internal predecessors, (17), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 06:45:44,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 06:45:44,493 INFO L93 Difference]: Finished difference Result 41 states and 57 transitions. [2021-04-16 06:45:44,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-16 06:45:44,495 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2021-04-16 06:45:44,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 06:45:44,500 INFO L225 Difference]: With dead ends: 41 [2021-04-16 06:45:44,500 INFO L226 Difference]: Without dead ends: 27 [2021-04-16 06:45:44,503 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 234.6ms TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-04-16 06:45:44,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-04-16 06:45:44,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2021-04-16 06:45:44,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.125) internal successors, (18), 17 states have internal predecessors, (18), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-04-16 06:45:44,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2021-04-16 06:45:44,538 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 13 [2021-04-16 06:45:44,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 06:45:44,538 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2021-04-16 06:45:44,539 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-04-16 06:45:44,539 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2021-04-16 06:45:44,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-04-16 06:45:44,540 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 06:45:44,540 INFO L519 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 06:45:44,540 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-16 06:45:44,540 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 06:45:44,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 06:45:44,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1052577873, now seen corresponding path program 1 times [2021-04-16 06:45:44,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 06:45:44,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [146100920] [2021-04-16 06:45:44,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 06:45:44,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:45:44,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-04-16 06:45:44,592 INFO L175 rdanLoopAcceleration]: Guard: Formula: (and (< (mod v_main_~x~0_10 4294967296) 10) (let ((.cse0 (+ v_main_~sn~0_8 2))) (or (= (mod (+ (* v_main_~x~0_10 2) 2) 4294967296) (mod .cse0 4294967296)) (= .cse0 0)))) InVars {main_~sn~0=v_main_~sn~0_8, main_~x~0=v_main_~x~0_10} OutVars{main_~sn~0=v_main_~sn~0_8, main_~x~0=v_main_~x~0_10} AuxVars[] AssignedVars[] [2021-04-16 06:45:44,606 WARN L240 tifierPushTermWalker]: treesize reduction 6, result has 96.5 percent of original size [2021-04-16 06:45:44,614 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:45:44,618 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:45:44,641 INFO L118 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:45:44,648 INFO L118 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:45:44,654 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:45:44,659 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:45:44,665 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:45:44,670 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:45:44,681 INFO L725 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2021-04-16 06:45:44,686 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:45:44,689 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:45:44,825 INFO L842 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-04-16 06:45:44,880 WARN L240 tifierPushTermWalker]: treesize reduction -2, result has 103.0 percent of original size [2021-04-16 06:45:44,883 INFO L725 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2021-04-16 06:45:44,890 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:45:44,891 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:45:44,899 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:45:45,374 WARN L205 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 1 [2021-04-16 06:45:45,376 INFO L108 tifierPushTermWalker]: treesize reduction 19, result has 5.0 percent of original size [2021-04-16 06:45:45,378 INFO L108 tifierPushTermWalker]: treesize reduction 12, result has 7.7 percent of original size [2021-04-16 06:45:45,380 INFO L108 tifierPushTermWalker]: treesize reduction 12, result has 7.7 percent of original size [2021-04-16 06:45:45,380 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-04-16 06:45:45,383 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:45:48,339 WARN L205 SmtUtils]: Spent 2.95 s on a formula simplification that was a NOOP. DAG size: 12 [2021-04-16 06:45:48,339 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:45:50,843 WARN L205 SmtUtils]: Spent 2.50 s on a formula simplification. DAG size of input: 12 DAG size of output: 1 [2021-04-16 06:45:50,844 INFO L108 tifierPushTermWalker]: treesize reduction 12, result has 7.7 percent of original size [2021-04-16 06:45:51,947 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 18 [2021-04-16 06:45:51,948 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:45:51,950 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-04-16 06:45:51,952 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-04-16 06:45:51,958 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:45:52,644 WARN L205 SmtUtils]: Spent 684.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2021-04-16 06:45:52,644 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:45:54,986 WARN L205 SmtUtils]: Spent 2.34 s on a formula simplification that was a NOOP. DAG size: 12 [2021-04-16 06:45:54,987 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:45:55,060 INFO L108 tifierPushTermWalker]: treesize reduction 19, result has 5.0 percent of original size [2021-04-16 06:45:57,350 WARN L205 SmtUtils]: Spent 2.29 s on a formula simplification. DAG size of input: 18 DAG size of output: 1 [2021-04-16 06:45:57,351 INFO L108 tifierPushTermWalker]: treesize reduction 18, result has 5.3 percent of original size [2021-04-16 06:45:57,358 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-04-16 06:45:57,359 WARN L245 tifierPushTermWalker]: treesize reduction -2, result has 103.0 percent of original size 68 [2021-04-16 06:45:57,361 WARN L240 tifierPushTermWalker]: treesize reduction 19, result has 78.2 percent of original size [2021-04-16 06:45:57,364 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:45:57,366 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:45:57,659 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2021-04-16 06:45:57,659 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:45:58,688 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 12 [2021-04-16 06:45:58,689 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:45:58,689 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-04-16 06:45:58,690 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-04-16 06:45:58,691 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:45:59,816 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 9 [2021-04-16 06:45:59,817 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:45:59,887 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:45:59,951 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:03,588 WARN L205 SmtUtils]: Spent 3.64 s on a formula simplification that was a NOOP. DAG size: 17 [2021-04-16 06:46:03,588 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:03,616 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:03,620 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-04-16 06:46:03,621 WARN L245 tifierPushTermWalker]: treesize reduction 19, result has 78.2 percent of original size 68 [2021-04-16 06:46:03,624 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:07,401 WARN L205 SmtUtils]: Spent 3.77 s on a formula simplification. DAG size of input: 3 DAG size of output: 1 [2021-04-16 06:46:07,401 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 06:46:07,409 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:09,532 WARN L205 SmtUtils]: Spent 2.12 s on a formula simplification that was a NOOP. DAG size: 14 [2021-04-16 06:46:09,533 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:09,688 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2021-04-16 06:46:09,688 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:13,700 WARN L205 SmtUtils]: Spent 4.01 s on a formula simplification that was a NOOP. DAG size: 12 [2021-04-16 06:46:13,701 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:14,116 WARN L205 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 1 [2021-04-16 06:46:14,117 INFO L108 tifierPushTermWalker]: treesize reduction 9, result has 10.0 percent of original size [2021-04-16 06:46:14,120 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-04-16 06:46:16,214 WARN L205 SmtUtils]: Spent 2.09 s on a formula simplification that was a NOOP. DAG size: 13 [2021-04-16 06:46:16,214 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:18,228 WARN L205 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 15 [2021-04-16 06:46:18,229 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:20,806 WARN L205 SmtUtils]: Spent 2.58 s on a formula simplification. DAG size of input: 16 DAG size of output: 1 [2021-04-16 06:46:20,806 INFO L108 tifierPushTermWalker]: treesize reduction 16, result has 5.9 percent of original size [2021-04-16 06:46:20,807 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-04-16 06:46:20,808 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:24,955 WARN L205 SmtUtils]: Spent 4.14 s on a formula simplification. DAG size of input: 12 DAG size of output: 1 [2021-04-16 06:46:24,955 INFO L108 tifierPushTermWalker]: treesize reduction 11, result has 8.3 percent of original size [2021-04-16 06:46:26,987 WARN L205 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 21 [2021-04-16 06:46:26,988 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:30,998 WARN L205 SmtUtils]: Spent 4.01 s on a formula simplification. DAG size of input: 23 DAG size of output: 1 [2021-04-16 06:46:30,999 INFO L108 tifierPushTermWalker]: treesize reduction 25, result has 3.8 percent of original size [2021-04-16 06:46:31,000 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-04-16 06:46:31,111 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 1 [2021-04-16 06:46:31,112 INFO L108 tifierPushTermWalker]: treesize reduction 35, result has 2.8 percent of original size [2021-04-16 06:46:31,831 WARN L205 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2021-04-16 06:46:31,832 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:33,932 WARN L205 SmtUtils]: Spent 2.10 s on a formula simplification that was a NOOP. DAG size: 24 [2021-04-16 06:46:33,932 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:35,880 WARN L205 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 28 DAG size of output: 1 [2021-04-16 06:46:35,881 INFO L108 tifierPushTermWalker]: treesize reduction 35, result has 2.8 percent of original size [2021-04-16 06:46:37,987 WARN L205 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 14 DAG size of output: 1 [2021-04-16 06:46:37,987 INFO L108 tifierPushTermWalker]: treesize reduction 14, result has 6.7 percent of original size [2021-04-16 06:46:38,184 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 3 DAG size of output: 1 [2021-04-16 06:46:38,184 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 06:46:38,980 WARN L205 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2021-04-16 06:46:38,980 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:38,986 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-04-16 06:46:39,135 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-04-16 06:46:39,135 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:39,337 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2021-04-16 06:46:39,338 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:39,339 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-04-16 06:46:39,391 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:39,498 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2021-04-16 06:46:39,498 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:39,522 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-04-16 06:46:39,845 WARN L205 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2021-04-16 06:46:39,845 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:40,324 WARN L205 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 1 [2021-04-16 06:46:40,325 INFO L118 tifierPushTermWalker]: treesize reduction 19, result has 5.0 percent of original size [2021-04-16 06:46:40,326 INFO L118 tifierPushTermWalker]: treesize reduction 10, result has 9.1 percent of original size [2021-04-16 06:46:40,334 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:40,342 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:40,359 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:40,375 INFO L108 tifierPushTermWalker]: treesize reduction 21, result has 4.5 percent of original size [2021-04-16 06:46:40,379 WARN L245 tifierPushTermWalker]: treesize reduction 6, result has 96.5 percent of original size 166 [2021-04-16 06:46:40,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:40,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-04-16 06:46:40,465 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 06:46:40,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 06:46:40,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:40,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 06:46:40,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:40,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-16 06:46:40,550 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.5 percent of original size [2021-04-16 06:46:40,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-16 06:46:40,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:40,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-16 06:46:40,574 INFO L142 QuantifierPusher]: treesize reduction 4, result has 96.9 percent of original size [2021-04-16 06:46:40,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-04-16 06:46:40,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:40,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 06:46:40,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:40,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 06:46:40,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:40,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 06:46:40,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 06:46:40,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 06:46:40,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:40,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 06:46:40,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-16 06:46:40,682 INFO L142 QuantifierPusher]: treesize reduction 7, result has 93.6 percent of original size [2021-04-16 06:46:40,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-04-16 06:46:40,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:40,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-04-16 06:46:40,728 INFO L142 QuantifierPusher]: treesize reduction 25, result has 41.9 percent of original size [2021-04-16 06:46:40,731 INFO L147 QuantifierPusher]: treesize reduction 2, result has 85.7 percent of original size 12 [2021-04-16 06:46:40,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:40,749 INFO L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-04-16 06:46:40,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:40,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 06:46:40,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:40,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 06:46:40,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:40,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-16 06:46:40,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:40,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-16 06:46:40,806 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:40,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-16 06:46:40,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:40,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-04-16 06:46:40,827 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:40,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 06:46:40,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [146100920] [2021-04-16 06:46:40,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 06:46:40,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-04-16 06:46:40,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584214859] [2021-04-16 06:46:40,828 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-04-16 06:46:40,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 06:46:40,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-04-16 06:46:40,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2021-04-16 06:46:40,829 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand has 14 states, 12 states have (on average 1.25) internal successors, (15), 10 states have internal predecessors, (15), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-04-16 06:46:41,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 06:46:41,230 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2021-04-16 06:46:41,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-04-16 06:46:41,230 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 1.25) internal successors, (15), 10 states have internal predecessors, (15), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2021-04-16 06:46:41,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 06:46:41,231 INFO L225 Difference]: With dead ends: 46 [2021-04-16 06:46:41,231 INFO L226 Difference]: Without dead ends: 36 [2021-04-16 06:46:41,232 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 465.6ms TimeCoverageRelationStatistics Valid=100, Invalid=452, Unknown=0, NotChecked=0, Total=552 [2021-04-16 06:46:41,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-04-16 06:46:41,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2021-04-16 06:46:41,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 24 states have (on average 1.125) internal successors, (27), 24 states have internal predecessors, (27), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-04-16 06:46:41,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2021-04-16 06:46:41,238 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 21 [2021-04-16 06:46:41,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 06:46:41,238 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2021-04-16 06:46:41,239 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 12 states have (on average 1.25) internal successors, (15), 10 states have internal predecessors, (15), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-04-16 06:46:41,249 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2021-04-16 06:46:41,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-04-16 06:46:41,250 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 06:46:41,250 INFO L519 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 06:46:41,250 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-16 06:46:41,250 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 06:46:41,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 06:46:41,250 INFO L82 PathProgramCache]: Analyzing trace with hash 723660460, now seen corresponding path program 1 times [2021-04-16 06:46:41,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 06:46:41,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2057419536] [2021-04-16 06:46:41,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 06:46:41,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:41,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-04-16 06:46:41,266 INFO L175 rdanLoopAcceleration]: Guard: Formula: (and (< (mod v_main_~x~0_18 4294967296) 10) (let ((.cse0 (+ v_main_~sn~0_16 2))) (or (= 0 .cse0) (= (mod (+ (* v_main_~x~0_18 2) 2) 4294967296) (mod .cse0 4294967296))))) InVars {main_~sn~0=v_main_~sn~0_16, main_~x~0=v_main_~x~0_18} OutVars{main_~sn~0=v_main_~sn~0_16, main_~x~0=v_main_~x~0_18} AuxVars[] AssignedVars[] [2021-04-16 06:46:41,272 WARN L240 tifierPushTermWalker]: treesize reduction 6, result has 96.5 percent of original size [2021-04-16 06:46:41,281 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:41,285 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:41,289 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:41,294 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:41,299 INFO L118 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:41,305 INFO L118 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:41,309 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:41,310 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:41,312 INFO L725 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2021-04-16 06:46:41,313 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:41,314 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:41,342 WARN L240 tifierPushTermWalker]: treesize reduction 13, result has 76.4 percent of original size [2021-04-16 06:46:41,343 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:43,400 WARN L205 SmtUtils]: Spent 2.06 s on a formula simplification that was a NOOP. DAG size: 12 [2021-04-16 06:46:43,401 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:47,537 WARN L205 SmtUtils]: Spent 4.14 s on a formula simplification. DAG size of input: 13 DAG size of output: 1 [2021-04-16 06:46:47,538 INFO L108 tifierPushTermWalker]: treesize reduction 14, result has 6.7 percent of original size [2021-04-16 06:46:49,075 WARN L205 SmtUtils]: Spent 1.54 s on a formula simplification that was a NOOP. DAG size: 11 [2021-04-16 06:46:49,076 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:49,076 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-04-16 06:46:49,080 WARN L245 tifierPushTermWalker]: treesize reduction 13, result has 76.4 percent of original size 42 [2021-04-16 06:46:49,082 WARN L240 tifierPushTermWalker]: treesize reduction 13, result has 82.7 percent of original size [2021-04-16 06:46:49,084 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:49,086 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:49,711 WARN L205 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2021-04-16 06:46:49,711 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:50,729 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 11 [2021-04-16 06:46:50,730 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:50,731 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-04-16 06:46:50,732 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-04-16 06:46:50,734 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:51,362 WARN L205 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2021-04-16 06:46:51,363 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:51,460 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:53,476 WARN L205 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 11 [2021-04-16 06:46:53,477 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:55,144 WARN L205 SmtUtils]: Spent 1.67 s on a formula simplification that was a NOOP. DAG size: 11 [2021-04-16 06:46:55,145 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:59,157 WARN L205 SmtUtils]: Spent 4.01 s on a formula simplification that was a NOOP. DAG size: 12 [2021-04-16 06:46:59,158 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:46:59,160 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-16 06:46:59,161 WARN L245 tifierPushTermWalker]: treesize reduction 13, result has 82.7 percent of original size 62 [2021-04-16 06:46:59,166 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:47:01,614 WARN L205 SmtUtils]: Spent 2.45 s on a formula simplification. DAG size of input: 3 DAG size of output: 1 [2021-04-16 06:47:01,615 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 06:47:02,412 WARN L205 SmtUtils]: Spent 796.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 1 [2021-04-16 06:47:02,412 INFO L108 tifierPushTermWalker]: treesize reduction 24, result has 4.0 percent of original size [2021-04-16 06:47:06,424 WARN L205 SmtUtils]: Spent 4.01 s on a formula simplification. DAG size of input: 15 DAG size of output: 1 [2021-04-16 06:47:06,424 INFO L108 tifierPushTermWalker]: treesize reduction 15, result has 6.3 percent of original size [2021-04-16 06:47:07,770 WARN L205 SmtUtils]: Spent 1.35 s on a formula simplification that was a NOOP. DAG size: 22 [2021-04-16 06:47:07,771 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:47:09,789 WARN L205 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 13 DAG size of output: 1 [2021-04-16 06:47:09,790 INFO L108 tifierPushTermWalker]: treesize reduction 13, result has 7.1 percent of original size [2021-04-16 06:47:11,390 WARN L205 SmtUtils]: Spent 1.60 s on a formula simplification that was a NOOP. DAG size: 11 [2021-04-16 06:47:11,391 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:47:15,415 WARN L205 SmtUtils]: Spent 4.02 s on a formula simplification that was a NOOP. DAG size: 14 [2021-04-16 06:47:15,415 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:47:17,593 WARN L205 SmtUtils]: Spent 2.18 s on a formula simplification. DAG size of input: 21 DAG size of output: 1 [2021-04-16 06:47:17,594 INFO L108 tifierPushTermWalker]: treesize reduction 21, result has 4.5 percent of original size [2021-04-16 06:47:17,609 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-04-16 06:47:18,070 WARN L205 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 1 [2021-04-16 06:47:18,071 INFO L108 tifierPushTermWalker]: treesize reduction 35, result has 2.8 percent of original size [2021-04-16 06:47:18,539 WARN L205 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-04-16 06:47:18,540 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:47:21,584 WARN L205 SmtUtils]: Spent 3.04 s on a formula simplification. DAG size of input: 23 DAG size of output: 1 [2021-04-16 06:47:21,585 INFO L108 tifierPushTermWalker]: treesize reduction 27, result has 3.6 percent of original size [2021-04-16 06:47:21,610 INFO L108 tifierPushTermWalker]: treesize reduction 24, result has 4.0 percent of original size [2021-04-16 06:47:21,612 INFO L108 tifierPushTermWalker]: treesize reduction 35, result has 2.8 percent of original size [2021-04-16 06:47:21,613 INFO L108 tifierPushTermWalker]: treesize reduction 32, result has 3.0 percent of original size [2021-04-16 06:47:21,614 INFO L108 tifierPushTermWalker]: treesize reduction 27, result has 3.6 percent of original size [2021-04-16 06:47:21,773 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 3 DAG size of output: 1 [2021-04-16 06:47:21,774 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 06:47:22,100 WARN L205 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2021-04-16 06:47:22,100 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:47:22,243 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 1 [2021-04-16 06:47:22,243 INFO L108 tifierPushTermWalker]: treesize reduction 14, result has 6.7 percent of original size [2021-04-16 06:47:22,244 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-04-16 06:47:22,569 WARN L205 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-04-16 06:47:22,569 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:47:22,843 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-04-16 06:47:22,843 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:47:22,853 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-04-16 06:47:22,902 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:47:23,320 WARN L205 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 1 [2021-04-16 06:47:23,320 INFO L118 tifierPushTermWalker]: treesize reduction 19, result has 5.0 percent of original size [2021-04-16 06:47:23,322 INFO L118 tifierPushTermWalker]: treesize reduction 10, result has 9.1 percent of original size [2021-04-16 06:47:23,337 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:47:23,344 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:47:23,358 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:47:23,373 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:47:23,487 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 5 DAG size of output: 1 [2021-04-16 06:47:23,487 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-04-16 06:47:23,705 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2021-04-16 06:47:23,705 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:47:23,740 INFO L108 tifierPushTermWalker]: treesize reduction 22, result has 4.3 percent of original size [2021-04-16 06:47:23,741 WARN L245 tifierPushTermWalker]: treesize reduction 6, result has 96.5 percent of original size 166 [2021-04-16 06:47:23,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 06:47:23,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-04-16 06:47:23,809 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2021-04-16 06:47:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-16 06:47:23,834 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-16 06:47:23,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-16 06:47:23,845 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-16 06:47:23,858 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-04-16 06:47:23,858 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-04-16 06:47:23,859 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-16 06:47:23,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.04 06:47:23 BoogieIcfgContainer [2021-04-16 06:47:23,869 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-16 06:47:23,869 INFO L168 Benchmark]: Toolchain (without parser) took 100549.25 ms. Allocated memory is still 182.5 MB. Free memory was 148.2 MB in the beginning and 99.4 MB in the end (delta: 48.7 MB). Peak memory consumption was 49.8 MB. Max. memory is 8.0 GB. [2021-04-16 06:47:23,869 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 182.5 MB. Free memory is still 164.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-04-16 06:47:23,869 INFO L168 Benchmark]: CACSL2BoogieTranslator took 162.48 ms. Allocated memory is still 182.5 MB. Free memory was 148.0 MB in the beginning and 166.9 MB in the end (delta: -18.9 MB). Peak memory consumption was 12.8 MB. Max. memory is 8.0 GB. [2021-04-16 06:47:23,870 INFO L168 Benchmark]: Boogie Preprocessor took 36.59 ms. Allocated memory is still 182.5 MB. Free memory was 166.9 MB in the beginning and 166.4 MB in the end (delta: 521.8 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-04-16 06:47:23,870 INFO L168 Benchmark]: RCFGBuilder took 254.96 ms. Allocated memory is still 182.5 MB. Free memory was 166.4 MB in the beginning and 152.2 MB in the end (delta: 14.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-04-16 06:47:23,870 INFO L168 Benchmark]: TraceAbstraction took 100088.14 ms. Allocated memory is still 182.5 MB. Free memory was 151.7 MB in the beginning and 99.4 MB in the end (delta: 52.3 MB). Peak memory consumption was 52.8 MB. Max. memory is 8.0 GB. [2021-04-16 06:47:23,870 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 182.5 MB. Free memory is still 164.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 162.48 ms. Allocated memory is still 182.5 MB. Free memory was 148.0 MB in the beginning and 166.9 MB in the end (delta: -18.9 MB). Peak memory consumption was 12.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 36.59 ms. Allocated memory is still 182.5 MB. Free memory was 166.9 MB in the beginning and 166.4 MB in the end (delta: 521.8 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 254.96 ms. Allocated memory is still 182.5 MB. Free memory was 166.4 MB in the beginning and 152.2 MB in the end (delta: 14.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 100088.14 ms. Allocated memory is still 182.5 MB. Free memory was 151.7 MB in the beginning and 99.4 MB in the end (delta: 52.3 MB). Peak memory consumption was 52.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L21] int sn=0; [L22] unsigned int loop1=__VERIFIER_nondet_uint(), n1=__VERIFIER_nondet_uint(); [L22] unsigned int loop1=__VERIFIER_nondet_uint(), n1=__VERIFIER_nondet_uint(); [L23] unsigned int x=0; [L24] COND TRUE 1 [L25] COND TRUE x<10 [L26] sn = sn + (2) [L28] x++ [L29] CALL __VERIFIER_assert(sn==x*(2) || sn == 0) [L14] COND FALSE !(!(cond)) [L29] RET __VERIFIER_assert(sn==x*(2) || sn == 0) [L24] COND TRUE 1 [L25] COND TRUE x<10 [L26] sn = sn + (2) [L28] x++ [L29] CALL __VERIFIER_assert(sn==x*(2) || sn == 0) [L14] COND FALSE !(!(cond)) [L29] RET __VERIFIER_assert(sn==x*(2) || sn == 0) [L24] COND TRUE 1 [L25] COND FALSE !(x<10) [L28] x++ [L29] CALL __VERIFIER_assert(sn==x*(2) || sn == 0) [L14] COND TRUE !(cond) [L15] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 100023.0ms, OverallIterations: 3, TraceHistogramMax: 3, EmptinessCheckTime: 22.3ms, AutomataDifference: 664.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 21 SDtfs, 58 SDslu, 56 SDs, 0 SdLazy, 190 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 163.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 700.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=2, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 30.4ms AutomataMinimizationTime, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 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 proved your program to be incorrect! Received shutdown request...