/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-19 18:02:13,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 18:02:13,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 18:02:13,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-19 18:02:13,359 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-19 18:02:13,361 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-19 18:02:13,363 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-19 18:02:13,365 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-19 18:02:13,368 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-19 18:02:13,369 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-19 18:02:13,371 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-19 18:02:13,372 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-19 18:02:13,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-19 18:02:13,374 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-19 18:02:13,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-19 18:02:13,377 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-19 18:02:13,378 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-19 18:02:13,380 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-19 18:02:13,382 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-19 18:02:13,385 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-19 18:02:13,387 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-19 18:02:13,388 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-19 18:02:13,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-19 18:02:13,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-19 18:02:13,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-19 18:02:13,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-19 18:02:13,407 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-19 18:02:13,409 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-19 18:02:13,415 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-02-19 18:02:13,443 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 18:02:13,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 18:02:13,445 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 18:02:13,445 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 18:02:13,445 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 18:02:13,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 18:02:13,446 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 18:02:13,446 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 18:02:13,446 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 18:02:13,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 18:02:13,447 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 18:02:13,447 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 18:02:13,447 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 18:02:13,447 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 18:02:13,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 18:02:13,448 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 18:02:13,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 18:02:13,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 18:02:13,448 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 18:02:13,449 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 18:02:13,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 18:02:13,449 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 18:02:13,449 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 18:02:13,450 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 18:02:13,450 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 18:02:13,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 18:02:13,450 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 18:02:13,451 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-19 18:02:13,451 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 18:02:13,956 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 18:02:13,998 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 18:02:14,001 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 18:02:14,003 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-19 18:02:14,004 INFO L275 PluginConnector]: CDTParser initialized [2021-02-19 18:02:14,005 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c [2021-02-19 18:02:14,088 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cd175d16/1052b4f988d149008f4181314ed77f8a/FLAGb622996f1 [2021-02-19 18:02:14,758 INFO L306 CDTParser]: Found 1 translation units. [2021-02-19 18:02:14,759 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3.c [2021-02-19 18:02:14,769 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cd175d16/1052b4f988d149008f4181314ed77f8a/FLAGb622996f1 [2021-02-19 18:02:15,106 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cd175d16/1052b4f988d149008f4181314ed77f8a [2021-02-19 18:02:15,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 18:02:15,123 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 18:02:15,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-19 18:02:15,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-19 18:02:15,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-19 18:02:15,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 06:02:15" (1/1) ... [2021-02-19 18:02:15,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4734726f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:02:15, skipping insertion in model container [2021-02-19 18:02:15,132 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 06:02:15" (1/1) ... [2021-02-19 18:02:15,141 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-19 18:02:15,157 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-19 18:02:15,321 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-industry-pattern/mod3.c[394,407] [2021-02-19 18:02:15,337 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 18:02:15,349 INFO L203 MainTranslator]: Completed pre-run [2021-02-19 18:02:15,365 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-industry-pattern/mod3.c[394,407] [2021-02-19 18:02:15,371 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 18:02:15,389 INFO L208 MainTranslator]: Completed translation [2021-02-19 18:02:15,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:02:15 WrapperNode [2021-02-19 18:02:15,404 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-19 18:02:15,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 18:02:15,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 18:02:15,406 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 18:02:15,420 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:02:15" (1/1) ... [2021-02-19 18:02:15,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:02:15" (1/1) ... [2021-02-19 18:02:15,429 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:02:15" (1/1) ... [2021-02-19 18:02:15,430 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:02:15" (1/1) ... [2021-02-19 18:02:15,437 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:02:15" (1/1) ... [2021-02-19 18:02:15,442 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:02:15" (1/1) ... [2021-02-19 18:02:15,443 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:02:15" (1/1) ... [2021-02-19 18:02:15,446 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 18:02:15,447 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 18:02:15,447 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 18:02:15,447 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 18:02:15,449 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:02:15" (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 [2021-02-19 18:02:15,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-19 18:02:15,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 18:02:15,559 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-19 18:02:15,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-19 18:02:15,559 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-19 18:02:15,559 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-19 18:02:15,559 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-19 18:02:15,560 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-19 18:02:15,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-19 18:02:15,560 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-19 18:02:15,560 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-19 18:02:15,560 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-19 18:02:15,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-19 18:02:15,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-19 18:02:15,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 18:02:15,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-19 18:02:15,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-19 18:02:15,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-19 18:02:15,906 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 18:02:15,906 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-19 18:02:15,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 06:02:15 BoogieIcfgContainer [2021-02-19 18:02:15,908 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 18:02:15,910 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 18:02:15,910 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 18:02:15,914 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 18:02:15,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.02 06:02:15" (1/3) ... [2021-02-19 18:02:15,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a977383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 06:02:15, skipping insertion in model container [2021-02-19 18:02:15,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:02:15" (2/3) ... [2021-02-19 18:02:15,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a977383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 06:02:15, skipping insertion in model container [2021-02-19 18:02:15,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 06:02:15" (3/3) ... [2021-02-19 18:02:15,917 INFO L111 eAbstractionObserver]: Analyzing ICFG mod3.c [2021-02-19 18:02:15,925 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 18:02:15,931 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 18:02:15,955 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-19 18:02:15,985 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 18:02:15,986 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 18:02:15,986 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 18:02:15,986 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 18:02:15,986 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 18:02:15,986 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 18:02:15,986 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 18:02:15,987 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 18:02:16,021 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2021-02-19 18:02:16,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-02-19 18:02:16,033 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:02:16,034 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 18:02:16,037 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:02:16,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:02:16,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1060463359, now seen corresponding path program 1 times [2021-02-19 18:02:16,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:02:16,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960049257] [2021-02-19 18:02:16,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:02:16,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:02:16,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:16,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:16,330 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:16,331 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:16,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:02:16,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:02:16,432 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:16,434 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:16,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:02:16,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960049257] [2021-02-19 18:02:16,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:02:16,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-19 18:02:16,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436182989] [2021-02-19 18:02:16,456 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-19 18:02:16,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:02:16,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-19 18:02:16,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 18:02:16,484 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states. [2021-02-19 18:02:16,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:02:16,616 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2021-02-19 18:02:16,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 18:02:16,620 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2021-02-19 18:02:16,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:02:16,639 INFO L225 Difference]: With dead ends: 37 [2021-02-19 18:02:16,639 INFO L226 Difference]: Without dead ends: 17 [2021-02-19 18:02:16,643 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 18:02:16,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-02-19 18:02:16,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-02-19 18:02:16,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-02-19 18:02:16,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2021-02-19 18:02:16,707 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 12 [2021-02-19 18:02:16,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:02:16,707 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2021-02-19 18:02:16,708 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-19 18:02:16,708 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2021-02-19 18:02:16,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-02-19 18:02:16,709 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:02:16,709 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 18:02:16,709 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 18:02:16,709 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:02:16,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:02:16,711 INFO L82 PathProgramCache]: Analyzing trace with hash 1839610256, now seen corresponding path program 1 times [2021-02-19 18:02:16,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:02:16,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620758205] [2021-02-19 18:02:16,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:02:16,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:02:16,786 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:16,787 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:16,788 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:16,789 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 18:02:16,793 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:16,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:16,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:02:16,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:02:16,850 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:16,854 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:16,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:02:16,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620758205] [2021-02-19 18:02:16,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:02:16,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-19 18:02:16,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131901466] [2021-02-19 18:02:16,862 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 18:02:16,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:02:16,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 18:02:16,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 18:02:16,866 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand 4 states. [2021-02-19 18:02:16,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:02:16,994 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2021-02-19 18:02:16,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 18:02:16,995 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2021-02-19 18:02:16,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:02:16,997 INFO L225 Difference]: With dead ends: 28 [2021-02-19 18:02:16,997 INFO L226 Difference]: Without dead ends: 22 [2021-02-19 18:02:16,999 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-19 18:02:17,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-02-19 18:02:17,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 19. [2021-02-19 18:02:17,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-02-19 18:02:17,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2021-02-19 18:02:17,018 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 13 [2021-02-19 18:02:17,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:02:17,019 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2021-02-19 18:02:17,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-19 18:02:17,022 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2021-02-19 18:02:17,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-02-19 18:02:17,023 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:02:17,023 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 18:02:17,024 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-19 18:02:17,026 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:02:17,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:02:17,027 INFO L82 PathProgramCache]: Analyzing trace with hash -496948910, now seen corresponding path program 1 times [2021-02-19 18:02:17,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:02:17,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733630756] [2021-02-19 18:02:17,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:02:17,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:02:17,172 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:17,173 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:17,187 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:17,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-02-19 18:02:17,311 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 17 [2021-02-19 18:02:17,316 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:17,317 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:02:17,326 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:17,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-19 18:02:17,340 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:17,341 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:17,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:02:17,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:02:17,404 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:17,405 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:17,408 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:02:17,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733630756] [2021-02-19 18:02:17,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:02:17,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-19 18:02:17,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275855726] [2021-02-19 18:02:17,413 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-19 18:02:17,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:02:17,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-19 18:02:17,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-19 18:02:17,415 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand 6 states. [2021-02-19 18:02:17,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:02:17,779 INFO L93 Difference]: Finished difference Result 33 states and 43 transitions. [2021-02-19 18:02:17,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 18:02:17,780 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2021-02-19 18:02:17,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:02:17,780 INFO L225 Difference]: With dead ends: 33 [2021-02-19 18:02:17,780 INFO L226 Difference]: Without dead ends: 0 [2021-02-19 18:02:17,782 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-02-19 18:02:17,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-19 18:02:17,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-19 18:02:17,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-19 18:02:17,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-19 18:02:17,783 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2021-02-19 18:02:17,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:02:17,783 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-19 18:02:17,783 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-19 18:02:17,783 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-19 18:02:17,783 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-19 18:02:17,784 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-19 18:02:17,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-19 18:02:17,920 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-19 18:02:17,920 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-19 18:02:17,920 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-19 18:02:17,920 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2021-02-19 18:02:17,921 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2021-02-19 18:02:17,921 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2021-02-19 18:02:17,921 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-02-19 18:02:17,921 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-19 18:02:17,921 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-19 18:02:17,922 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-02-19 18:02:17,922 INFO L185 CegarLoopUtils]: At program point L33(line 33) the Hoare annotation is: (<= main_~x~0 (let ((.cse0 (div main_~x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ main_~x~0 .cse2) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ main_~x~0 .cse2 (* .cse1 (- 3))) 4294967296))))))) [2021-02-19 18:02:17,922 INFO L189 CegarLoopUtils]: For program point L25(lines 25 28) no Hoare annotation was computed. [2021-02-19 18:02:17,922 INFO L189 CegarLoopUtils]: For program point mainEXIT(lines 14 35) no Hoare annotation was computed. [2021-02-19 18:02:17,922 INFO L185 CegarLoopUtils]: At program point L25-2(lines 18 31) the Hoare annotation is: (or (= main_~y~0 1) (<= main_~x~0 (let ((.cse0 (div main_~x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ main_~x~0 .cse2) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ main_~x~0 .cse2 (* .cse1 (- 3))) 4294967296)))))))) [2021-02-19 18:02:17,923 INFO L189 CegarLoopUtils]: For program point L19(lines 19 30) no Hoare annotation was computed. [2021-02-19 18:02:17,923 INFO L189 CegarLoopUtils]: For program point mainFINAL(lines 14 35) no Hoare annotation was computed. [2021-02-19 18:02:17,923 INFO L189 CegarLoopUtils]: For program point L32(lines 32 33) no Hoare annotation was computed. [2021-02-19 18:02:17,923 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 14 35) the Hoare annotation is: true [2021-02-19 18:02:17,923 INFO L189 CegarLoopUtils]: For program point L22(lines 22 29) no Hoare annotation was computed. [2021-02-19 18:02:17,923 INFO L189 CegarLoopUtils]: For program point L18-1(lines 18 31) no Hoare annotation was computed. [2021-02-19 18:02:17,923 INFO L189 CegarLoopUtils]: For program point L18-3(lines 14 35) no Hoare annotation was computed. [2021-02-19 18:02:17,924 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 8 12) the Hoare annotation is: true [2021-02-19 18:02:17,924 INFO L189 CegarLoopUtils]: For program point L10(line 10) no Hoare annotation was computed. [2021-02-19 18:02:17,924 INFO L189 CegarLoopUtils]: For program point __VERIFIER_assertEXIT(lines 8 12) no Hoare annotation was computed. [2021-02-19 18:02:17,924 INFO L189 CegarLoopUtils]: For program point L9(lines 9 10) no Hoare annotation was computed. [2021-02-19 18:02:17,924 INFO L189 CegarLoopUtils]: For program point L9-2(lines 8 12) no Hoare annotation was computed. [2021-02-19 18:02:17,924 INFO L189 CegarLoopUtils]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2021-02-19 18:02:17,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 06:02:17 BoogieIcfgContainer [2021-02-19 18:02:17,948 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-19 18:02:17,950 INFO L168 Benchmark]: Toolchain (without parser) took 2837.73 ms. Allocated memory is still 163.6 MB. Free memory was 125.5 MB in the beginning and 88.1 MB in the end (delta: 37.5 MB). Peak memory consumption was 39.0 MB. Max. memory is 8.0 GB. [2021-02-19 18:02:17,951 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 163.6 MB. Free memory is still 141.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-19 18:02:17,952 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.57 ms. Allocated memory is still 163.6 MB. Free memory was 124.5 MB in the beginning and 146.7 MB in the end (delta: -22.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-02-19 18:02:17,953 INFO L168 Benchmark]: Boogie Preprocessor took 41.10 ms. Allocated memory is still 163.6 MB. Free memory was 146.7 MB in the beginning and 145.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-19 18:02:17,953 INFO L168 Benchmark]: RCFGBuilder took 461.15 ms. Allocated memory is still 163.6 MB. Free memory was 145.5 MB in the beginning and 139.8 MB in the end (delta: 5.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-19 18:02:17,954 INFO L168 Benchmark]: TraceAbstraction took 2038.53 ms. Allocated memory is still 163.6 MB. Free memory was 139.4 MB in the beginning and 88.1 MB in the end (delta: 51.3 MB). Peak memory consumption was 52.7 MB. Max. memory is 8.0 GB. [2021-02-19 18:02:17,958 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 163.6 MB. Free memory is still 141.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 279.57 ms. Allocated memory is still 163.6 MB. Free memory was 124.5 MB in the beginning and 146.7 MB in the end (delta: -22.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 41.10 ms. Allocated memory is still 163.6 MB. Free memory was 146.7 MB in the beginning and 145.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 461.15 ms. Allocated memory is still 163.6 MB. Free memory was 145.5 MB in the beginning and 139.8 MB in the end (delta: 5.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2038.53 ms. Allocated memory is still 163.6 MB. Free memory was 139.4 MB in the beginning and 88.1 MB in the end (delta: 51.3 MB). Peak memory consumption was 52.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: 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: 18]: Loop Invariant Derived loop invariant: y == 1 || x <= 4294967296 * (x / 4294967296) + 3 * ((x + x / 4294967296 * -4294967296) / 3) + 4294967296 * ((x + x / 4294967296 * -4294967296 + (x + x / 4294967296 * -4294967296) / 3 * -3) / 4294967296) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 27 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 63 SDtfs, 61 SDslu, 26 SDs, 0 SdLazy, 72 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 10 PreInvPairs, 13 NumberOfFragments, 121 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 161 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 4192 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...