/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/loop-new/count_by_1_variant.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 04:49:32,245 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 04:49:32,248 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 04:49:32,284 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-24 04:49:32,299 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 04:49:32,300 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 04:49:32,302 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 04:49:32,303 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 04:49:32,321 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 04:49:32,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 04:49:32,325 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 04:49:32,327 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 04:49:32,330 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 04:49:32,332 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 04:49:32,334 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 04:49:32,335 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 04:49:32,342 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-24 04:49:32,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 04:49:32,363 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 04:49:32,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 04:49:32,366 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 04:49:32,393 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 04:49:32,393 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 04:49:32,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 04:49:32,398 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 04:49:32,398 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 04:49:32,398 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 04:49:32,399 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 04:49:32,399 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 04:49:32,399 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 04:49:32,399 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 04:49:32,400 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 04:49:32,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 04:49:32,401 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 04:49:32,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 04:49:32,401 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 04:49:32,402 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 04:49:32,402 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 04:49:32,402 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 04:49:32,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:49:32,402 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 04:49:32,403 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 04:49:32,403 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 04:49:32,403 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 04:49:32,403 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 04:49:32,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 04:49:32,865 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 04:49:32,868 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 04:49:32,870 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 04:49:32,871 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 04:49:32,872 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/count_by_1_variant.i [2021-02-24 04:49:32,962 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74493ccb7/c1153e1995224e2b83f33cc4058ba2fb/FLAG4ec9398d5 [2021-02-24 04:49:33,607 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 04:49:33,608 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/count_by_1_variant.i [2021-02-24 04:49:33,618 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74493ccb7/c1153e1995224e2b83f33cc4058ba2fb/FLAG4ec9398d5 [2021-02-24 04:49:33,982 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74493ccb7/c1153e1995224e2b83f33cc4058ba2fb [2021-02-24 04:49:33,986 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 04:49:34,002 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 04:49:34,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 04:49:34,010 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 04:49:34,014 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 04:49:34,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:49:33" (1/1) ... [2021-02-24 04:49:34,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54315928 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:49:34, skipping insertion in model container [2021-02-24 04:49:34,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:49:33" (1/1) ... [2021-02-24 04:49:34,028 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 04:49:34,047 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 04:49:34,271 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-new/count_by_1_variant.i[891,904] [2021-02-24 04:49:34,281 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:49:34,293 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 04:49:34,309 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-new/count_by_1_variant.i[891,904] [2021-02-24 04:49:34,311 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:49:34,330 INFO L208 MainTranslator]: Completed translation [2021-02-24 04:49:34,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:49:34 WrapperNode [2021-02-24 04:49:34,331 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 04:49:34,332 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 04:49:34,332 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 04:49:34,333 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 04:49:34,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:49:34" (1/1) ... [2021-02-24 04:49:34,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:49:34" (1/1) ... [2021-02-24 04:49:34,355 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:49:34" (1/1) ... [2021-02-24 04:49:34,356 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:49:34" (1/1) ... [2021-02-24 04:49:34,362 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:49:34" (1/1) ... [2021-02-24 04:49:34,366 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:49:34" (1/1) ... [2021-02-24 04:49:34,368 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:49:34" (1/1) ... [2021-02-24 04:49:34,370 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 04:49:34,371 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 04:49:34,372 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 04:49:34,372 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 04:49:34,373 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:49:34" (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 [2021-02-24 04:49:34,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 04:49:34,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 04:49:34,484 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 04:49:34,484 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-24 04:49:34,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-24 04:49:34,485 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 04:49:34,485 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 04:49:34,485 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 04:49:34,485 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-24 04:49:34,485 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-24 04:49:34,486 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 04:49:34,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 04:49:34,486 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-24 04:49:34,486 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-24 04:49:34,486 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 04:49:34,487 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 04:49:34,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 04:49:34,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 04:49:34,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 04:49:34,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 04:49:34,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 04:49:34,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 04:49:34,873 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 04:49:34,874 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-24 04:49:34,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:49:34 BoogieIcfgContainer [2021-02-24 04:49:34,876 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 04:49:34,879 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 04:49:34,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 04:49:34,883 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 04:49:34,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:49:33" (1/3) ... [2021-02-24 04:49:34,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b5c5e1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:49:34, skipping insertion in model container [2021-02-24 04:49:34,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:49:34" (2/3) ... [2021-02-24 04:49:34,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b5c5e1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:49:34, skipping insertion in model container [2021-02-24 04:49:34,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:49:34" (3/3) ... [2021-02-24 04:49:34,889 INFO L111 eAbstractionObserver]: Analyzing ICFG count_by_1_variant.i [2021-02-24 04:49:34,897 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 04:49:34,902 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 04:49:34,923 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 04:49:34,961 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 04:49:34,962 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 04:49:34,962 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 04:49:34,962 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 04:49:34,962 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 04:49:34,962 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 04:49:34,962 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 04:49:34,962 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 04:49:34,986 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2021-02-24 04:49:34,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-02-24 04:49:34,999 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:49:35,000 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:49:35,000 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:49:35,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:49:35,009 INFO L82 PathProgramCache]: Analyzing trace with hash -86411315, now seen corresponding path program 1 times [2021-02-24 04:49:35,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:49:35,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2119637546] [2021-02-24 04:49:35,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:49:35,093 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:49:35,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:49:35,238 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:35,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:49:35,252 WARN L141 QuantifierPusher]: treesize reduction 9, result has 25.0 percent of original size [2021-02-24 04:49:35,253 WARN L147 QuantifierPusher]: treesize reduction 9, result has 25.0 percent of original size 3 [2021-02-24 04:49:35,269 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:35,270 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:49:35,282 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:35,283 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:49:35,296 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:35,298 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:49:35,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:49:35,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:49:35,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:35,370 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:49:35,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:49:35,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2119637546] [2021-02-24 04:49:35,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:49:35,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 04:49:35,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191712956] [2021-02-24 04:49:35,389 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 04:49:35,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:49:35,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 04:49:35,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-24 04:49:35,408 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 6 states. [2021-02-24 04:49:35,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:49:35,649 INFO L93 Difference]: Finished difference Result 54 states and 63 transitions. [2021-02-24 04:49:35,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-24 04:49:35,651 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2021-02-24 04:49:35,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:49:35,659 INFO L225 Difference]: With dead ends: 54 [2021-02-24 04:49:35,659 INFO L226 Difference]: Without dead ends: 32 [2021-02-24 04:49:35,663 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-02-24 04:49:35,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-02-24 04:49:35,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2021-02-24 04:49:35,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2021-02-24 04:49:35,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2021-02-24 04:49:35,740 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 18 [2021-02-24 04:49:35,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:49:35,741 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2021-02-24 04:49:35,741 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 04:49:35,741 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2021-02-24 04:49:35,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-02-24 04:49:35,742 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:49:35,742 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:49:35,743 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 04:49:35,743 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:49:35,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:49:35,744 INFO L82 PathProgramCache]: Analyzing trace with hash -674484509, now seen corresponding path program 1 times [2021-02-24 04:49:35,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:49:35,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [512190423] [2021-02-24 04:49:35,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:49:35,774 WARN L141 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-02-24 04:49:35,789 WARN L147 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size 10 [2021-02-24 04:49:35,796 WARN L141 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size [2021-02-24 04:49:35,799 WARN L147 QuantifierPusher]: treesize reduction 3, result has 76.9 percent of original size 10 [2021-02-24 04:49:35,807 WARN L141 QuantifierPusher]: treesize reduction 4, result has 76.5 percent of original size [2021-02-24 04:49:35,826 WARN L147 QuantifierPusher]: treesize reduction 4, result has 76.5 percent of original size 13 [2021-02-24 04:49:35,834 WARN L141 QuantifierPusher]: treesize reduction 5, result has 82.1 percent of original size [2021-02-24 04:49:35,843 WARN L147 QuantifierPusher]: treesize reduction 5, result has 82.1 percent of original size 23 [2021-02-24 04:49:35,846 WARN L141 QuantifierPusher]: treesize reduction 12, result has 7.7 percent of original size [2021-02-24 04:49:35,847 WARN L147 QuantifierPusher]: treesize reduction 12, result has 7.7 percent of original size 1 [2021-02-24 04:49:35,855 WARN L141 QuantifierPusher]: treesize reduction 12, result has 7.7 percent of original size [2021-02-24 04:49:35,855 WARN L147 QuantifierPusher]: treesize reduction 12, result has 7.7 percent of original size 1 [2021-02-24 04:49:35,861 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-24 04:49:35,864 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-24 04:49:35,868 WARN L141 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-02-24 04:49:35,875 WARN L147 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size 17 [2021-02-24 04:49:35,876 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-24 04:49:35,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:49:35,947 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:35,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:49:35,948 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:35,949 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:49:35,954 WARN L141 QuantifierPusher]: treesize reduction 7, result has 30.0 percent of original size [2021-02-24 04:49:35,954 WARN L147 QuantifierPusher]: treesize reduction 7, result has 30.0 percent of original size 3 [2021-02-24 04:49:35,961 WARN L141 QuantifierPusher]: treesize reduction 7, result has 30.0 percent of original size [2021-02-24 04:49:35,962 WARN L147 QuantifierPusher]: treesize reduction 7, result has 30.0 percent of original size 3 [2021-02-24 04:49:35,963 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:35,963 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:49:35,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:35,969 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 04:49:35,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:35,975 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:49:35,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:49:35,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:49:36,009 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:36,010 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:49:36,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:49:36,016 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:36,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-24 04:49:36,023 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:36,028 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:36,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:36,031 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-24 04:49:36,035 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-24 04:49:36,086 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:36,087 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:49:36,117 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:36,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:36,124 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:36,127 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 04:49:36,130 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-24 04:49:36,161 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:36,163 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:36,166 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:36,167 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 04:49:36,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-24 04:49:36,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:36,198 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:36,200 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:36,203 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 04:49:36,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-02-24 04:49:36,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:36,242 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:36,244 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:36,246 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 04:49:36,250 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-24 04:49:36,274 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:36,278 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:36,279 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:36,280 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-24 04:49:36,285 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-02-24 04:49:36,289 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:36,297 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-24 04:49:36,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:36,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-02-24 04:49:36,302 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-24 04:49:36,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:36,311 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:49:36,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:36,330 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-24 04:49:36,358 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:36,360 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 04:49:36,373 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:49:36,374 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:49:36,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [512190423] [2021-02-24 04:49:36,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:49:36,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-24 04:49:36,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980522215] [2021-02-24 04:49:36,376 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-24 04:49:36,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:49:36,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-24 04:49:36,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-02-24 04:49:36,382 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand 13 states. [2021-02-24 04:49:36,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:49:36,736 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2021-02-24 04:49:36,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-24 04:49:36,736 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2021-02-24 04:49:36,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:49:36,737 INFO L225 Difference]: With dead ends: 30 [2021-02-24 04:49:36,737 INFO L226 Difference]: Without dead ends: 0 [2021-02-24 04:49:36,739 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2021-02-24 04:49:36,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-24 04:49:36,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-24 04:49:36,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-24 04:49:36,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-24 04:49:36,741 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2021-02-24 04:49:36,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:49:36,741 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-24 04:49:36,741 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-24 04:49:36,741 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-24 04:49:36,742 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-24 04:49:36,742 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 04:49:36,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-24 04:49:37,367 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2021-02-24 04:49:37,367 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 12) no Hoare annotation was computed. [2021-02-24 04:49:37,367 INFO L189 CegarLoopUtils]: For program point L12-1(line 12) no Hoare annotation was computed. [2021-02-24 04:49:37,368 INFO L189 CegarLoopUtils]: For program point L12-2(line 12) no Hoare annotation was computed. [2021-02-24 04:49:37,368 INFO L189 CegarLoopUtils]: For program point L12-3(line 12) no Hoare annotation was computed. [2021-02-24 04:49:37,368 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 04:49:37,368 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-24 04:49:37,368 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 12) the Hoare annotation is: true [2021-02-24 04:49:37,368 INFO L192 CegarLoopUtils]: At program point L12(line 12) the Hoare annotation is: true [2021-02-24 04:49:37,369 INFO L192 CegarLoopUtils]: At program point L12-1(line 12) the Hoare annotation is: true [2021-02-24 04:49:37,369 INFO L192 CegarLoopUtils]: At program point L12-2(line 12) the Hoare annotation is: true [2021-02-24 04:49:37,369 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |#t~string1.offset| |old(#t~string1.offset)|)) [2021-02-24 04:49:37,369 INFO L192 CegarLoopUtils]: At program point L12-3(line 12) the Hoare annotation is: true [2021-02-24 04:49:37,369 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-24 04:49:37,369 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-24 04:49:37,369 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 04:49:37,370 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-24 04:49:37,370 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-24 04:49:37,370 INFO L189 CegarLoopUtils]: For program point L15(line 15) no Hoare annotation was computed. [2021-02-24 04:49:37,370 INFO L189 CegarLoopUtils]: For program point L15-1(line 15) no Hoare annotation was computed. [2021-02-24 04:49:37,370 INFO L189 CegarLoopUtils]: For program point assume_abort_if_notENTRY(lines 14 16) no Hoare annotation was computed. [2021-02-24 04:49:37,370 INFO L189 CegarLoopUtils]: For program point L15-3(lines 14 16) no Hoare annotation was computed. [2021-02-24 04:49:37,370 INFO L189 CegarLoopUtils]: For program point assume_abort_if_notEXIT(lines 14 16) no Hoare annotation was computed. [2021-02-24 04:49:37,371 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 24 30) the Hoare annotation is: true [2021-02-24 04:49:37,371 INFO L185 CegarLoopUtils]: At program point L27(line 27) the Hoare annotation is: (and (<= main_~i~0 1000000) (<= 0 main_~i~0) (not (= main_~i~0 1000000))) [2021-02-24 04:49:37,371 INFO L192 CegarLoopUtils]: At program point L26(line 26) the Hoare annotation is: true [2021-02-24 04:49:37,371 INFO L185 CegarLoopUtils]: At program point L27-1(lines 26 28) the Hoare annotation is: (and (<= main_~i~0 1000000) (<= 0 main_~i~0) (not (= main_~i~0 1000000))) [2021-02-24 04:49:37,371 INFO L185 CegarLoopUtils]: At program point mainEXIT(lines 24 30) the Hoare annotation is: (<= main_~i~0 1000000) [2021-02-24 04:49:37,372 INFO L185 CegarLoopUtils]: At program point L26-3(line 26) the Hoare annotation is: (and (<= main_~i~0 1000000) (<= 0 main_~i~0) (not (= main_~i~0 1000000)) (= |main_#t~post3| main_~i~0)) [2021-02-24 04:49:37,372 INFO L185 CegarLoopUtils]: At program point L26-4(line 26) the Hoare annotation is: (and (<= main_~i~0 1000000) (<= 0 main_~i~0) (= (+ |main_#t~post3| 1) main_~i~0)) [2021-02-24 04:49:37,372 INFO L185 CegarLoopUtils]: At program point L26-5(lines 26 28) the Hoare annotation is: (and (<= main_~i~0 1000000) (<= 0 main_~i~0)) [2021-02-24 04:49:37,372 INFO L185 CegarLoopUtils]: At program point L26-6(lines 26 28) the Hoare annotation is: (<= main_~i~0 1000000) [2021-02-24 04:49:37,372 INFO L185 CegarLoopUtils]: At program point mainFINAL(lines 24 30) the Hoare annotation is: (<= main_~i~0 1000000) [2021-02-24 04:49:37,372 INFO L185 CegarLoopUtils]: At program point L18-2(lines 17 22) the Hoare annotation is: (or (forall ((v_main_~i~0_BEFORE_CALL_1 Int)) (let ((.cse0 (<= v_main_~i~0_BEFORE_CALL_1 1000000))) (or (not .cse0) (not (<= 0 v_main_~i~0_BEFORE_CALL_1)) (not (= (ite .cse0 1 0) |__VERIFIER_assert_#in~cond|)) (= v_main_~i~0_BEFORE_CALL_1 1000000)))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2021-02-24 04:49:37,373 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 17 22) the Hoare annotation is: true [2021-02-24 04:49:37,373 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertEXIT(lines 17 22) the Hoare annotation is: (or (forall ((v_main_~i~0_BEFORE_CALL_1 Int)) (let ((.cse0 (<= v_main_~i~0_BEFORE_CALL_1 1000000))) (or (not .cse0) (not (<= 0 v_main_~i~0_BEFORE_CALL_1)) (not (= (ite .cse0 1 0) |__VERIFIER_assert_#in~cond|)) (= v_main_~i~0_BEFORE_CALL_1 1000000)))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2021-02-24 04:49:37,373 INFO L185 CegarLoopUtils]: At program point L19(line 19) the Hoare annotation is: (forall ((v_main_~i~0_BEFORE_CALL_1 Int)) (let ((.cse0 (<= v_main_~i~0_BEFORE_CALL_1 1000000))) (or (not .cse0) (not (<= 0 v_main_~i~0_BEFORE_CALL_1)) (not (= (ite .cse0 1 0) |__VERIFIER_assert_#in~cond|)) (= v_main_~i~0_BEFORE_CALL_1 1000000)))) [2021-02-24 04:49:37,373 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) the Hoare annotation is: (forall ((v_main_~i~0_BEFORE_CALL_1 Int)) (let ((.cse0 (<= v_main_~i~0_BEFORE_CALL_1 1000000))) (or (not .cse0) (not (<= 0 v_main_~i~0_BEFORE_CALL_1)) (not (= (ite .cse0 1 0) |__VERIFIER_assert_#in~cond|)) (= v_main_~i~0_BEFORE_CALL_1 1000000)))) [2021-02-24 04:49:37,374 INFO L185 CegarLoopUtils]: At program point L18(lines 18 20) the Hoare annotation is: (or (forall ((v_main_~i~0_BEFORE_CALL_1 Int)) (let ((.cse0 (<= v_main_~i~0_BEFORE_CALL_1 1000000))) (or (not .cse0) (not (<= 0 v_main_~i~0_BEFORE_CALL_1)) (not (= (ite .cse0 1 0) |__VERIFIER_assert_#in~cond|)) (= v_main_~i~0_BEFORE_CALL_1 1000000)))) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) [2021-02-24 04:49:37,374 INFO L185 CegarLoopUtils]: At program point L19-1(line 19) the Hoare annotation is: (forall ((v_main_~i~0_BEFORE_CALL_1 Int)) (let ((.cse0 (<= v_main_~i~0_BEFORE_CALL_1 1000000))) (or (not .cse0) (not (<= 0 v_main_~i~0_BEFORE_CALL_1)) (not (= (ite .cse0 1 0) |__VERIFIER_assert_#in~cond|)) (= v_main_~i~0_BEFORE_CALL_1 1000000)))) [2021-02-24 04:49:37,391 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_BEFORE_CALL_1,QUANTIFIED] [2021-02-24 04:49:37,392 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_BEFORE_CALL_1,QUANTIFIED] [2021-02-24 04:49:37,393 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_BEFORE_CALL_1,QUANTIFIED] [2021-02-24 04:49:37,393 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_BEFORE_CALL_1,QUANTIFIED] [2021-02-24 04:49:37,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 04:49:37 BoogieIcfgContainer [2021-02-24 04:49:37,398 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 04:49:37,405 INFO L168 Benchmark]: Toolchain (without parser) took 3410.53 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 128.5 MB in the beginning and 79.9 MB in the end (delta: 48.6 MB). Peak memory consumption was 79.6 MB. Max. memory is 8.0 GB. [2021-02-24 04:49:37,407 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 124.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 04:49:37,411 INFO L168 Benchmark]: CACSL2BoogieTranslator took 322.12 ms. Allocated memory is still 151.0 MB. Free memory was 127.4 MB in the beginning and 118.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-24 04:49:37,414 INFO L168 Benchmark]: Boogie Preprocessor took 38.54 ms. Allocated memory is still 151.0 MB. Free memory was 117.9 MB in the beginning and 116.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-24 04:49:37,416 INFO L168 Benchmark]: RCFGBuilder took 504.84 ms. Allocated memory is still 151.0 MB. Free memory was 116.5 MB in the beginning and 134.7 MB in the end (delta: -18.2 MB). Peak memory consumption was 18.7 MB. Max. memory is 8.0 GB. [2021-02-24 04:49:37,419 INFO L168 Benchmark]: TraceAbstraction took 2518.86 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 134.4 MB in the beginning and 79.9 MB in the end (delta: 54.6 MB). Peak memory consumption was 85.0 MB. Max. memory is 8.0 GB. [2021-02-24 04:49:37,423 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 124.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 322.12 ms. Allocated memory is still 151.0 MB. Free memory was 127.4 MB in the beginning and 118.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 38.54 ms. Allocated memory is still 151.0 MB. Free memory was 117.9 MB in the beginning and 116.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 504.84 ms. Allocated memory is still 151.0 MB. Free memory was 116.5 MB in the beginning and 134.7 MB in the end (delta: -18.2 MB). Peak memory consumption was 18.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2518.86 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 134.4 MB in the beginning and 79.9 MB in the end (delta: 54.6 MB). Peak memory consumption was 85.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_BEFORE_CALL_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_BEFORE_CALL_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_BEFORE_CALL_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_BEFORE_CALL_1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: i <= 1000000 && 0 <= i - ProcedureContractResult [Line: 24]: Procedure Contract for main Derived contract for procedure main: i <= 1000000 - ProcedureContractResult [Line: 17]: Procedure Contract for __VERIFIER_assert [2021-02-24 04:49:37,443 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_BEFORE_CALL_1,QUANTIFIED] [2021-02-24 04:49:37,443 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_BEFORE_CALL_1,QUANTIFIED] [2021-02-24 04:49:37,443 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_BEFORE_CALL_1,QUANTIFIED] [2021-02-24 04:49:37,443 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_BEFORE_CALL_1,QUANTIFIED] [2021-02-24 04:49:37,444 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_BEFORE_CALL_1,QUANTIFIED] [2021-02-24 04:49:37,444 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_BEFORE_CALL_1,QUANTIFIED] [2021-02-24 04:49:37,447 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_BEFORE_CALL_1,QUANTIFIED] [2021-02-24 04:49:37,447 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_BEFORE_CALL_1,QUANTIFIED] Derived contract for procedure __VERIFIER_assert: (forall v_main_~i~0_BEFORE_CALL_1 : int :: ((!(v_main_~i~0_BEFORE_CALL_1 <= 1000000) || !(0 <= v_main_~i~0_BEFORE_CALL_1)) || !((if v_main_~i~0_BEFORE_CALL_1 <= 1000000 then 1 else 0) == \old(cond))) || v_main_~i~0_BEFORE_CALL_1 == 1000000) || \old(cond) == cond - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.7s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 39 SDtfs, 50 SDslu, 130 SDs, 0 SdLazy, 118 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 9 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 30 LocationsWithAnnotation, 44 PreInvPairs, 59 NumberOfFragments, 248 HoareAnnotationTreeSize, 44 FomulaSimplifications, 144 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 30 FomulaSimplificationsInter, 865 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, 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 correct! Received shutdown request...