/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 [2021-02-21 16:29:11,839 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 16:29:11,843 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 16:29:11,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 16:29:11,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 16:29:11,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 16:29:11,897 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 16:29:11,900 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 16:29:11,902 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 16:29:11,903 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 16:29:11,904 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 16:29:11,906 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 16:29:11,906 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 16:29:11,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 16:29:11,909 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 16:29:11,910 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 16:29:11,924 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 16:29:11,928 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 16:29:11,930 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 16:29:11,932 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 16:29:11,934 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 16:29:11,936 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 16:29:11,937 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 16:29:11,938 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 16:29:11,941 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-21 16:29:11,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 16:29:11,953 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 16:29:11,954 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 16:29:11,957 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 [2021-02-21 16:29:11,983 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 16:29:11,984 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 16:29:11,985 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-21 16:29:11,985 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-21 16:29:11,986 INFO L138 SettingsManager]: * Use SBE=true [2021-02-21 16:29:11,986 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 16:29:11,986 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 16:29:11,986 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 16:29:11,987 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 16:29:11,987 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 16:29:11,987 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 16:29:11,987 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 16:29:11,987 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 16:29:11,988 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 16:29:11,988 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 16:29:11,988 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 16:29:11,988 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 16:29:11,988 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 16:29:11,989 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-21 16:29:11,989 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 16:29:11,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 16:29:11,989 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 16:29:11,990 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-21 16:29:11,990 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-21 16:29:11,990 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-21 16:29:11,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-21 16:29:11,990 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 16:29:11,991 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-21 16:29:11,991 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 16:29:12,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 16:29:12,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 16:29:12,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 16:29:12,392 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 16:29:12,393 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 16:29:12,394 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c [2021-02-21 16:29:12,481 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b22fcc158/c20890fcf98142948060a9ece562c7c1/FLAGda4cfb730 [2021-02-21 16:29:13,074 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 16:29:13,074 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3.c [2021-02-21 16:29:13,082 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b22fcc158/c20890fcf98142948060a9ece562c7c1/FLAGda4cfb730 [2021-02-21 16:29:13,416 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b22fcc158/c20890fcf98142948060a9ece562c7c1 [2021-02-21 16:29:13,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 16:29:13,440 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 16:29:13,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 16:29:13,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 16:29:13,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 16:29:13,448 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:29:13" (1/1) ... [2021-02-21 16:29:13,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@252aeccd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:29:13, skipping insertion in model container [2021-02-21 16:29:13,450 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:29:13" (1/1) ... [2021-02-21 16:29:13,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 16:29:13,476 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 16:29:13,641 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] [2021-02-21 16:29:13,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 16:29:13,666 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 16:29:13,682 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] [2021-02-21 16:29:13,688 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 16:29:13,704 INFO L208 MainTranslator]: Completed translation [2021-02-21 16:29:13,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:29:13 WrapperNode [2021-02-21 16:29:13,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 16:29:13,706 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 16:29:13,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 16:29:13,707 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 16:29:13,721 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:29:13" (1/1) ... [2021-02-21 16:29:13,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:29:13" (1/1) ... [2021-02-21 16:29:13,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:29:13" (1/1) ... [2021-02-21 16:29:13,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:29:13" (1/1) ... [2021-02-21 16:29:13,737 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:29:13" (1/1) ... [2021-02-21 16:29:13,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:29:13" (1/1) ... [2021-02-21 16:29:13,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:29:13" (1/1) ... [2021-02-21 16:29:13,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 16:29:13,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 16:29:13,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 16:29:13,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 16:29:13,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:29:13" (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 [2021-02-21 16:29:13,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 16:29:13,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 16:29:13,889 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 16:29:13,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-21 16:29:13,890 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 16:29:13,890 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 16:29:13,890 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 16:29:13,891 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 16:29:13,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 16:29:13,892 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-21 16:29:13,893 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-21 16:29:13,893 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 16:29:13,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 16:29:13,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 16:29:13,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 16:29:13,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 16:29:13,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 16:29:13,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 16:29:14,374 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 16:29:14,374 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-21 16:29:14,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:29:14 BoogieIcfgContainer [2021-02-21 16:29:14,376 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 16:29:14,377 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 16:29:14,377 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 16:29:14,390 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 16:29:14,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 04:29:13" (1/3) ... [2021-02-21 16:29:14,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3179b693 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 04:29:14, skipping insertion in model container [2021-02-21 16:29:14,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:29:13" (2/3) ... [2021-02-21 16:29:14,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3179b693 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 04:29:14, skipping insertion in model container [2021-02-21 16:29:14,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:29:14" (3/3) ... [2021-02-21 16:29:14,394 INFO L111 eAbstractionObserver]: Analyzing ICFG mod3.c [2021-02-21 16:29:14,411 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-21 16:29:14,417 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 16:29:14,440 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 16:29:14,484 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 16:29:14,484 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 16:29:14,484 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-21 16:29:14,484 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 16:29:14,485 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 16:29:14,485 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 16:29:14,485 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 16:29:14,485 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 16:29:14,509 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2021-02-21 16:29:14,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-02-21 16:29:14,517 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:29:14,518 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 16:29:14,518 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:29:14,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:29:14,528 INFO L82 PathProgramCache]: Analyzing trace with hash -1060463359, now seen corresponding path program 1 times [2021-02-21 16:29:14,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:29:14,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094917917] [2021-02-21 16:29:14,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:29:14,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:29:14,806 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:29:14,808 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:29:14,810 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:29:14,812 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:29:14,939 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-02-21 16:29:14,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:29:14,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:29:14,990 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:29:14,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:29:14,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:29:15,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094917917] [2021-02-21 16:29:15,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:29:15,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-21 16:29:15,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512950212] [2021-02-21 16:29:15,009 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-21 16:29:15,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:29:15,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-21 16:29:15,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-21 16:29:15,034 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states. [2021-02-21 16:29:15,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:29:15,147 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2021-02-21 16:29:15,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-21 16:29:15,150 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2021-02-21 16:29:15,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:29:15,160 INFO L225 Difference]: With dead ends: 37 [2021-02-21 16:29:15,160 INFO L226 Difference]: Without dead ends: 17 [2021-02-21 16:29:15,165 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-21 16:29:15,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-02-21 16:29:15,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-02-21 16:29:15,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-02-21 16:29:15,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2021-02-21 16:29:15,214 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 12 [2021-02-21 16:29:15,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:29:15,215 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2021-02-21 16:29:15,215 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-21 16:29:15,215 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2021-02-21 16:29:15,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-02-21 16:29:15,217 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:29:15,217 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 16:29:15,217 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 16:29:15,218 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:29:15,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:29:15,219 INFO L82 PathProgramCache]: Analyzing trace with hash 1839610256, now seen corresponding path program 1 times [2021-02-21 16:29:15,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:29:15,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681779784] [2021-02-21 16:29:15,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:29:15,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:29:15,345 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:29:15,346 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:29:15,348 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:29:15,349 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 16:29:15,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:29:15,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:29:15,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:29:15,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:29:15,430 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:29:15,433 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:29:15,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:29:15,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681779784] [2021-02-21 16:29:15,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:29:15,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-21 16:29:15,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319867371] [2021-02-21 16:29:15,439 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-21 16:29:15,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:29:15,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-21 16:29:15,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-21 16:29:15,447 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand 4 states. [2021-02-21 16:29:15,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:29:15,581 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2021-02-21 16:29:15,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-21 16:29:15,584 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2021-02-21 16:29:15,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:29:15,586 INFO L225 Difference]: With dead ends: 28 [2021-02-21 16:29:15,586 INFO L226 Difference]: Without dead ends: 22 [2021-02-21 16:29:15,587 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 [2021-02-21 16:29:15,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-02-21 16:29:15,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 19. [2021-02-21 16:29:15,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-02-21 16:29:15,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2021-02-21 16:29:15,601 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 13 [2021-02-21 16:29:15,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:29:15,602 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2021-02-21 16:29:15,602 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-21 16:29:15,602 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2021-02-21 16:29:15,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-02-21 16:29:15,603 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 16:29:15,603 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 16:29:15,604 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 16:29:15,604 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 16:29:15,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 16:29:15,607 INFO L82 PathProgramCache]: Analyzing trace with hash -496948910, now seen corresponding path program 1 times [2021-02-21 16:29:15,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 16:29:15,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185835292] [2021-02-21 16:29:15,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 16:29:15,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:29:15,774 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:29:15,775 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:29:15,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:29:15,792 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-02-21 16:29:15,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:29:15,854 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:29:15,861 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:29:15,861 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-21 16:29:15,869 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:29:15,870 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:29:15,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 16:29:15,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 16:29:15,913 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 16:29:15,914 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 16:29:15,916 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-21 16:29:15,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185835292] [2021-02-21 16:29:15,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 16:29:15,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-21 16:29:15,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183936783] [2021-02-21 16:29:15,918 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-21 16:29:15,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-21 16:29:15,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-21 16:29:15,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-21 16:29:15,920 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand 6 states. [2021-02-21 16:29:16,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 16:29:16,314 INFO L93 Difference]: Finished difference Result 33 states and 43 transitions. [2021-02-21 16:29:16,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-21 16:29:16,315 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2021-02-21 16:29:16,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 16:29:16,315 INFO L225 Difference]: With dead ends: 33 [2021-02-21 16:29:16,315 INFO L226 Difference]: Without dead ends: 0 [2021-02-21 16:29:16,316 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 [2021-02-21 16:29:16,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-21 16:29:16,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-21 16:29:16,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-21 16:29:16,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-21 16:29:16,317 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2021-02-21 16:29:16,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 16:29:16,318 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-21 16:29:16,318 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-21 16:29:16,318 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-21 16:29:16,318 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-21 16:29:16,318 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-21 16:29:16,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-21 16:29:16,470 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-21 16:29:16,471 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-21 16:29:16,471 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-21 16:29:16,471 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2021-02-21 16:29:16,471 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|)) [2021-02-21 16:29:16,471 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2021-02-21 16:29:16,472 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-02-21 16:29:16,472 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-21 16:29:16,472 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-21 16:29:16,472 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-02-21 16:29:16,472 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))))))) [2021-02-21 16:29:16,473 INFO L189 CegarLoopUtils]: For program point L25(lines 25 28) no Hoare annotation was computed. [2021-02-21 16:29:16,473 INFO L189 CegarLoopUtils]: For program point mainEXIT(lines 14 35) no Hoare annotation was computed. [2021-02-21 16:29:16,473 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)))))))) [2021-02-21 16:29:16,473 INFO L189 CegarLoopUtils]: For program point L19(lines 19 30) no Hoare annotation was computed. [2021-02-21 16:29:16,473 INFO L189 CegarLoopUtils]: For program point mainFINAL(lines 14 35) no Hoare annotation was computed. [2021-02-21 16:29:16,473 INFO L189 CegarLoopUtils]: For program point L32(lines 32 33) no Hoare annotation was computed. [2021-02-21 16:29:16,474 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 14 35) the Hoare annotation is: true [2021-02-21 16:29:16,474 INFO L189 CegarLoopUtils]: For program point L22(lines 22 29) no Hoare annotation was computed. [2021-02-21 16:29:16,474 INFO L189 CegarLoopUtils]: For program point L18-1(lines 18 31) no Hoare annotation was computed. [2021-02-21 16:29:16,474 INFO L189 CegarLoopUtils]: For program point L18-3(lines 14 35) no Hoare annotation was computed. [2021-02-21 16:29:16,474 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 8 12) the Hoare annotation is: true [2021-02-21 16:29:16,474 INFO L189 CegarLoopUtils]: For program point L10(line 10) no Hoare annotation was computed. [2021-02-21 16:29:16,475 INFO L189 CegarLoopUtils]: For program point __VERIFIER_assertEXIT(lines 8 12) no Hoare annotation was computed. [2021-02-21 16:29:16,475 INFO L189 CegarLoopUtils]: For program point L9(lines 9 10) no Hoare annotation was computed. [2021-02-21 16:29:16,475 INFO L189 CegarLoopUtils]: For program point L9-2(lines 8 12) no Hoare annotation was computed. [2021-02-21 16:29:16,475 INFO L189 CegarLoopUtils]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2021-02-21 16:29:16,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 04:29:16 BoogieIcfgContainer [2021-02-21 16:29:16,493 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 16:29:16,495 INFO L168 Benchmark]: Toolchain (without parser) took 3066.98 ms. Allocated memory is still 156.2 MB. Free memory was 131.9 MB in the beginning and 111.6 MB in the end (delta: 20.4 MB). Peak memory consumption was 21.6 MB. Max. memory is 8.0 GB. [2021-02-21 16:29:16,495 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 156.2 MB. Free memory is still 128.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 16:29:16,496 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.26 ms. Allocated memory is still 156.2 MB. Free memory was 130.8 MB in the beginning and 120.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-21 16:29:16,497 INFO L168 Benchmark]: Boogie Preprocessor took 39.64 ms. Allocated memory is still 156.2 MB. Free memory was 120.7 MB in the beginning and 119.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-21 16:29:16,498 INFO L168 Benchmark]: RCFGBuilder took 628.93 ms. Allocated memory is still 156.2 MB. Free memory was 119.2 MB in the beginning and 137.9 MB in the end (delta: -18.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-02-21 16:29:16,499 INFO L168 Benchmark]: TraceAbstraction took 2116.20 ms. Allocated memory is still 156.2 MB. Free memory was 137.9 MB in the beginning and 111.6 MB in the end (delta: 26.4 MB). Peak memory consumption was 26.9 MB. Max. memory is 8.0 GB. [2021-02-21 16:29:16,502 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 156.2 MB. Free memory is still 128.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 263.26 ms. Allocated memory is still 156.2 MB. Free memory was 130.8 MB in the beginning and 120.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 39.64 ms. Allocated memory is still 156.2 MB. Free memory was 120.7 MB in the beginning and 119.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 628.93 ms. Allocated memory is still 156.2 MB. Free memory was 119.2 MB in the beginning and 137.9 MB in the end (delta: -18.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2116.20 ms. Allocated memory is still 156.2 MB. Free memory was 137.9 MB in the beginning and 111.6 MB in the end (delta: 26.4 MB). Peak memory consumption was 26.9 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, 0.4s 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, 0.1s 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...