/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loop-invariants/odd.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 21:34:53,524 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 21:34:53,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 21:34:53,565 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-21 21:34:53,577 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 21:34:53,578 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 21:34:53,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 21:34:53,581 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 21:34:53,582 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 21:34:53,583 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 21:34:53,585 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 21:34:53,588 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 21:34:53,590 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 21:34:53,592 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 21:34:53,593 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 21:34:53,594 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 21:34:53,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-21 21:34:53,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 21:34:53,633 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 21:34:53,635 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 21:34:53,638 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-21 21:34:53,659 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 21:34:53,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 21:34:53,664 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 21:34:53,665 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 21:34:53,665 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 21:34:53,665 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 21:34:53,665 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 21:34:53,665 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 21:34:53,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 21:34:53,666 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 21:34:53,667 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 21:34:53,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 21:34:53,668 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 21:34:53,668 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 21:34:53,668 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 21:34:53,668 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-21 21:34:53,669 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-21 21:34:53,669 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 21:34:53,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 21:34:53,669 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 21:34:53,669 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-21 21:34:53,670 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 21:34:53,670 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 21:34:54,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 21:34:54,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 21:34:54,110 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 21:34:54,112 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 21:34:54,112 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 21:34:54,113 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/odd.c [2021-02-21 21:34:54,181 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/257d2c428/0df783a457484443a14f8b1ce9904faf/FLAGb16842c41 [2021-02-21 21:34:54,718 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 21:34:54,718 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/odd.c [2021-02-21 21:34:54,724 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/257d2c428/0df783a457484443a14f8b1ce9904faf/FLAGb16842c41 [2021-02-21 21:34:55,127 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/257d2c428/0df783a457484443a14f8b1ce9904faf [2021-02-21 21:34:55,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 21:34:55,146 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 21:34:55,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 21:34:55,149 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 21:34:55,153 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 21:34:55,153 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 09:34:55" (1/1) ... [2021-02-21 21:34:55,156 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e6cca4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:34:55, skipping insertion in model container [2021-02-21 21:34:55,156 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 09:34:55" (1/1) ... [2021-02-21 21:34:55,165 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 21:34:55,182 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 21:34:55,355 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-invariants/odd.c[350,363] [2021-02-21 21:34:55,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 21:34:55,376 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 21:34:55,391 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-invariants/odd.c[350,363] [2021-02-21 21:34:55,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 21:34:55,414 INFO L208 MainTranslator]: Completed translation [2021-02-21 21:34:55,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:34:55 WrapperNode [2021-02-21 21:34:55,415 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 21:34:55,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 21:34:55,417 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 21:34:55,417 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 21:34:55,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:34:55" (1/1) ... [2021-02-21 21:34:55,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:34:55" (1/1) ... [2021-02-21 21:34:55,438 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:34:55" (1/1) ... [2021-02-21 21:34:55,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:34:55" (1/1) ... [2021-02-21 21:34:55,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:34:55" (1/1) ... [2021-02-21 21:34:55,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:34:55" (1/1) ... [2021-02-21 21:34:55,451 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:34:55" (1/1) ... [2021-02-21 21:34:55,453 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 21:34:55,454 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 21:34:55,454 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 21:34:55,454 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 21:34:55,455 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:34:55" (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 21:34:55,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 21:34:55,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 21:34:55,567 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 21:34:55,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-21 21:34:55,567 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 21:34:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 21:34:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 21:34:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 21:34:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 21:34:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-21 21:34:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-21 21:34:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 21:34:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 21:34:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 21:34:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 21:34:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 21:34:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 21:34:55,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 21:34:55,894 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 21:34:55,895 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-21 21:34:55,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 09:34:55 BoogieIcfgContainer [2021-02-21 21:34:55,897 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 21:34:55,899 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 21:34:55,899 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 21:34:55,903 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 21:34:55,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 09:34:55" (1/3) ... [2021-02-21 21:34:55,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7964ed37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 09:34:55, skipping insertion in model container [2021-02-21 21:34:55,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 09:34:55" (2/3) ... [2021-02-21 21:34:55,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7964ed37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 09:34:55, skipping insertion in model container [2021-02-21 21:34:55,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 09:34:55" (3/3) ... [2021-02-21 21:34:55,909 INFO L111 eAbstractionObserver]: Analyzing ICFG odd.c [2021-02-21 21:34:55,916 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-21 21:34:55,920 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-21 21:34:55,958 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-21 21:34:55,982 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 21:34:55,983 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 21:34:55,983 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-21 21:34:55,983 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 21:34:55,983 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 21:34:55,984 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 21:34:55,984 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 21:34:55,984 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 21:34:56,000 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2021-02-21 21:34:56,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-02-21 21:34:56,013 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:34:56,014 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 21:34:56,015 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:34:56,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:34:56,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1932693874, now seen corresponding path program 1 times [2021-02-21 21:34:56,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:34:56,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [402901724] [2021-02-21 21:34:56,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:34:56,159 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:34:56,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:34:56,296 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:34:56,297 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:34:56,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:34:56,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:34:56,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:34:56,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:34:56,373 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:34:56,373 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:34:56,382 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 21:34:56,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [402901724] [2021-02-21 21:34:56,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:34:56,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-21 21:34:56,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580809712] [2021-02-21 21:34:56,392 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-21 21:34:56,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:34:56,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-21 21:34:56,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-21 21:34:56,421 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 3 states. [2021-02-21 21:34:56,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:34:56,579 INFO L93 Difference]: Finished difference Result 49 states and 52 transitions. [2021-02-21 21:34:56,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-21 21:34:56,581 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2021-02-21 21:34:56,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:34:56,595 INFO L225 Difference]: With dead ends: 49 [2021-02-21 21:34:56,596 INFO L226 Difference]: Without dead ends: 29 [2021-02-21 21:34:56,603 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 [2021-02-21 21:34:56,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-02-21 21:34:56,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-02-21 21:34:56,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2021-02-21 21:34:56,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2021-02-21 21:34:56,672 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 24 [2021-02-21 21:34:56,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:34:56,675 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2021-02-21 21:34:56,675 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-21 21:34:56,675 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2021-02-21 21:34:56,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-02-21 21:34:56,677 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:34:56,677 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 21:34:56,678 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 21:34:56,678 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:34:56,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:34:56,679 INFO L82 PathProgramCache]: Analyzing trace with hash 887982277, now seen corresponding path program 1 times [2021-02-21 21:34:56,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:34:56,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [920540211] [2021-02-21 21:34:56,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:34:56,694 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-21 21:34:56,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:34:56,812 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:34:56,813 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:34:56,814 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:34:56,815 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-21 21:34:56,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:34:56,821 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:34:56,827 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:34:56,828 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-21 21:34:56,836 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:34:56,836 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:34:56,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:34:56,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:34:56,885 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:34:56,886 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:34:56,890 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 21:34:56,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [920540211] [2021-02-21 21:34:56,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:34:56,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-21 21:34:56,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23522539] [2021-02-21 21:34:56,892 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-21 21:34:56,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:34:56,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-21 21:34:56,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-21 21:34:56,893 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand 6 states. [2021-02-21 21:34:57,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:34:57,123 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2021-02-21 21:34:57,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-21 21:34:57,124 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2021-02-21 21:34:57,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:34:57,126 INFO L225 Difference]: With dead ends: 39 [2021-02-21 21:34:57,126 INFO L226 Difference]: Without dead ends: 33 [2021-02-21 21:34:57,127 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-02-21 21:34:57,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-02-21 21:34:57,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2021-02-21 21:34:57,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2021-02-21 21:34:57,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2021-02-21 21:34:57,138 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 26 [2021-02-21 21:34:57,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:34:57,138 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2021-02-21 21:34:57,139 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-21 21:34:57,139 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2021-02-21 21:34:57,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-02-21 21:34:57,140 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 21:34:57,140 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 21:34:57,140 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-21 21:34:57,141 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 21:34:57,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 21:34:57,141 INFO L82 PathProgramCache]: Analyzing trace with hash 136008254, now seen corresponding path program 1 times [2021-02-21 21:34:57,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-21 21:34:57,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [607762382] [2021-02-21 21:34:57,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 21:34:59,248 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:34:59,278 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-02-21 21:35:01,335 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:35:01,340 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-02-21 21:35:01,341 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-21 21:35:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:35:01,515 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:35:01,516 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:35:01,517 WARN L141 QuantifierPusher]: treesize reduction 6, result has 33.3 percent of original size [2021-02-21 21:35:01,518 WARN L147 QuantifierPusher]: treesize reduction 6, result has 33.3 percent of original size 3 [2021-02-21 21:35:01,524 WARN L141 QuantifierPusher]: treesize reduction 29, result has 39.6 percent of original size [2021-02-21 21:35:01,526 WARN L147 QuantifierPusher]: treesize reduction 29, result has 39.6 percent of original size 19 [2021-02-21 21:35:01,538 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:35:01,539 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-21 21:35:01,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:35:01,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-21 21:35:01,559 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:35:01,560 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-21 21:35:01,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:35:01,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:35:01,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-21 21:35:01,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-21 21:35:01,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:35:01,626 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-21 21:35:01,629 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 21:35:01,634 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:35:01,637 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 21:35:01,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:35:01,639 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-21 21:35:01,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-02-21 21:35:01,645 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:35:01,653 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 21:35:01,657 WARN L141 QuantifierPusher]: treesize reduction 12, result has 88.7 percent of original size [2021-02-21 21:35:01,659 WARN L147 QuantifierPusher]: treesize reduction 12, result has 88.7 percent of original size 94 [2021-02-21 21:35:01,662 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-02-21 21:35:01,802 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:35:01,804 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 21:35:01,806 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:35:01,808 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-02-21 21:35:01,810 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-02-21 21:35:01,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:35:01,867 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 21:35:01,871 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:35:01,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-02-21 21:35:01,876 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 115 [2021-02-21 21:35:01,942 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:35:01,947 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 21:35:01,950 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:35:01,952 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-02-21 21:35:01,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 116 [2021-02-21 21:35:02,040 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-21 21:35:02,045 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-21 21:35:02,048 WARN L141 QuantifierPusher]: treesize reduction 2, result has 97.9 percent of original size [2021-02-21 21:35:02,050 WARN L147 QuantifierPusher]: treesize reduction 2, result has 97.9 percent of original size 94 [2021-02-21 21:35:02,053 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 109 [2021-02-21 21:35:02,121 WARN L141 QuantifierPusher]: treesize reduction 12, result has 7.7 percent of original size [2021-02-21 21:35:02,122 WARN L147 QuantifierPusher]: treesize reduction 12, result has 7.7 percent of original size 1 [2021-02-21 21:35:02,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [607762382] [2021-02-21 21:35:02,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-21 21:35:02,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-21 21:35:02,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474881311] [2021-02-21 21:35:02,124 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-21 21:35:02,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-21 21:35:02,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-21 21:35:02,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-02-21 21:35:02,125 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 10 states. [2021-02-21 21:35:03,045 WARN L202 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 84 [2021-02-21 21:35:03,210 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 86 [2021-02-21 21:35:03,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-21 21:35:03,586 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2021-02-21 21:35:03,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-21 21:35:03,587 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 30 [2021-02-21 21:35:03,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-21 21:35:03,587 INFO L225 Difference]: With dead ends: 33 [2021-02-21 21:35:03,588 INFO L226 Difference]: Without dead ends: 0 [2021-02-21 21:35:03,589 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2021-02-21 21:35:03,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-21 21:35:03,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-21 21:35:03,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-21 21:35:03,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-21 21:35:03,590 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2021-02-21 21:35:03,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-21 21:35:03,590 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-21 21:35:03,591 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-21 21:35:03,591 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-21 21:35:03,591 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-21 21:35:03,591 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-21 21:35:03,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-21 21:35:04,224 WARN L202 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 59 [2021-02-21 21:35:04,338 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 56 [2021-02-21 21:35:04,509 WARN L202 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2021-02-21 21:35:04,660 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-21 21:35:04,660 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-21 21:35:04,660 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-21 21:35:04,660 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-21 21:35:04,661 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-21 21:35:04,661 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-21 21:35:04,661 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-21 21:35:04,661 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-21 21:35:04,661 INFO L192 CegarLoopUtils]: At program point L3-5(line 3) the Hoare annotation is: true [2021-02-21 21:35:04,661 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2021-02-21 21:35:04,661 INFO L192 CegarLoopUtils]: At program point L3-6(line 3) the Hoare annotation is: true [2021-02-21 21:35:04,662 INFO L192 CegarLoopUtils]: At program point L3-7(line 3) the Hoare annotation is: true [2021-02-21 21:35:04,662 INFO L192 CegarLoopUtils]: At program point L3-8(line 3) the Hoare annotation is: true [2021-02-21 21:35:04,662 INFO L192 CegarLoopUtils]: At program point L3-9(line 3) the Hoare annotation is: true [2021-02-21 21:35:04,662 INFO L192 CegarLoopUtils]: At program point L3-10(line 3) the Hoare annotation is: true [2021-02-21 21:35:04,662 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 21:35:04,662 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-21 21:35:04,663 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-21 21:35:04,663 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-21 21:35:04,663 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-21 21:35:04,663 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-21 21:35:04,663 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-21 21:35:04,663 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-21 21:35:04,663 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 11 18) the Hoare annotation is: true [2021-02-21 21:35:04,664 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 11 18) the Hoare annotation is: true [2021-02-21 21:35:04,664 INFO L192 CegarLoopUtils]: At program point L16(line 16) the Hoare annotation is: true [2021-02-21 21:35:04,664 INFO L185 CegarLoopUtils]: At program point L14(line 14) the Hoare annotation is: (and (or (<= 3 main_~x~0) (= main_~x~0 1)) (exists ((aux_mod_v_main_~x~0_13_32 Int) (aux_div_v_main_~x~0_13_32 Int) (|v_main_#t~nondet7_13| Int)) (and (<= 1 aux_mod_v_main_~x~0_13_32) (let ((.cse5 (* 2 |v_main_#t~nondet7_13|))) (let ((.cse3 (* aux_div_v_main_~x~0_13_32 2)) (.cse1 (<= 2 .cse5)) (.cse2 (<= .cse5 4294967294))) (or (let ((.cse0 (div (+ main_~x~0 (* aux_mod_v_main_~x~0_13_32 (- 1)) (* aux_div_v_main_~x~0_13_32 (- 2)) (- 8)) 2))) (and (<= 0 .cse0) .cse1 .cse2 (<= (div (+ (* main_~x~0 (- 1)) aux_mod_v_main_~x~0_13_32 .cse3 8) (- 2)) .cse0))) (and (= |v_main_#t~nondet7_13| |main_#t~nondet7|) (= main_~x~0 (+ aux_mod_v_main_~x~0_13_32 .cse3 4))) (let ((.cse4 (+ aux_mod_v_main_~x~0_13_32 (* 2 aux_div_v_main_~x~0_13_32) 6))) (and .cse1 .cse2 (<= main_~x~0 .cse4) (<= .cse4 main_~x~0)))))) (< aux_mod_v_main_~x~0_13_32 2)))) [2021-02-21 21:35:04,664 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 11 18) the Hoare annotation is: true [2021-02-21 21:35:04,665 INFO L185 CegarLoopUtils]: At program point L13-1(lines 13 15) the Hoare annotation is: (let ((.cse0 (<= 0 (+ |main_#t~nondet7| 2147483648))) (.cse1 (<= |main_#t~nondet7| 2147483647))) (or (and .cse0 (= main_~x~0 1) .cse1) (and .cse0 (exists ((aux_mod_v_main_~x~0_13_32 Int) (aux_div_v_main_~x~0_13_32 Int) (|v_main_#t~nondet7_13| Int)) (and (<= 1 aux_mod_v_main_~x~0_13_32) (let ((.cse7 (* 2 |v_main_#t~nondet7_13|))) (let ((.cse5 (* aux_div_v_main_~x~0_13_32 2)) (.cse3 (<= 2 .cse7)) (.cse4 (<= .cse7 4294967294))) (or (let ((.cse2 (div (+ main_~x~0 (* aux_mod_v_main_~x~0_13_32 (- 1)) (* aux_div_v_main_~x~0_13_32 (- 2)) (- 8)) 2))) (and (<= 0 .cse2) .cse3 .cse4 (<= (div (+ (* main_~x~0 (- 1)) aux_mod_v_main_~x~0_13_32 .cse5 8) (- 2)) .cse2))) (and (= |v_main_#t~nondet7_13| |main_#t~nondet7|) (= main_~x~0 (+ aux_mod_v_main_~x~0_13_32 .cse5 4))) (let ((.cse6 (+ aux_mod_v_main_~x~0_13_32 (* 2 aux_div_v_main_~x~0_13_32) 6))) (and .cse3 .cse4 (<= main_~x~0 .cse6) (<= .cse6 main_~x~0)))))) (< aux_mod_v_main_~x~0_13_32 2))) .cse1 (or (= main_~x~0 3) (<= 5 main_~x~0))))) [2021-02-21 21:35:04,665 INFO L185 CegarLoopUtils]: At program point L13-2(line 13) the Hoare annotation is: (or (and (<= 0 (+ |main_#t~nondet7| 2147483648)) (exists ((aux_mod_v_main_~x~0_13_32 Int) (aux_div_v_main_~x~0_13_32 Int) (|v_main_#t~nondet7_13| Int)) (and (<= 1 aux_mod_v_main_~x~0_13_32) (let ((.cse5 (* 2 |v_main_#t~nondet7_13|))) (let ((.cse3 (* aux_div_v_main_~x~0_13_32 2)) (.cse1 (<= 2 .cse5)) (.cse2 (<= .cse5 4294967294))) (or (let ((.cse0 (div (+ main_~x~0 (* aux_mod_v_main_~x~0_13_32 (- 1)) (* aux_div_v_main_~x~0_13_32 (- 2)) (- 8)) 2))) (and (<= 0 .cse0) .cse1 .cse2 (<= (div (+ (* main_~x~0 (- 1)) aux_mod_v_main_~x~0_13_32 .cse3 8) (- 2)) .cse0))) (and (= |v_main_#t~nondet7_13| |main_#t~nondet7|) (= main_~x~0 (+ aux_mod_v_main_~x~0_13_32 .cse3 4))) (let ((.cse4 (+ aux_mod_v_main_~x~0_13_32 (* 2 aux_div_v_main_~x~0_13_32) 6))) (and .cse1 .cse2 (<= main_~x~0 .cse4) (<= .cse4 main_~x~0)))))) (< aux_mod_v_main_~x~0_13_32 2))) (<= |main_#t~nondet7| 2147483647) (or (= main_~x~0 3) (<= 5 main_~x~0))) (= main_~x~0 1)) [2021-02-21 21:35:04,665 INFO L185 CegarLoopUtils]: At program point L13-4(line 13) the Hoare annotation is: (let ((.cse0 (<= 0 (+ |main_#t~nondet7| 2147483648))) (.cse1 (not (= |main_#t~nondet7| 0))) (.cse2 (<= |main_#t~nondet7| 2147483647))) (or (and .cse0 .cse1 (= main_~x~0 1) .cse2) (and .cse0 .cse1 (exists ((aux_mod_v_main_~x~0_13_32 Int) (aux_div_v_main_~x~0_13_32 Int) (|v_main_#t~nondet7_13| Int)) (and (<= 1 aux_mod_v_main_~x~0_13_32) (let ((.cse8 (* 2 |v_main_#t~nondet7_13|))) (let ((.cse6 (* aux_div_v_main_~x~0_13_32 2)) (.cse4 (<= 2 .cse8)) (.cse5 (<= .cse8 4294967294))) (or (let ((.cse3 (div (+ main_~x~0 (* aux_mod_v_main_~x~0_13_32 (- 1)) (* aux_div_v_main_~x~0_13_32 (- 2)) (- 8)) 2))) (and (<= 0 .cse3) .cse4 .cse5 (<= (div (+ (* main_~x~0 (- 1)) aux_mod_v_main_~x~0_13_32 .cse6 8) (- 2)) .cse3))) (and (= |v_main_#t~nondet7_13| |main_#t~nondet7|) (= main_~x~0 (+ aux_mod_v_main_~x~0_13_32 .cse6 4))) (let ((.cse7 (+ aux_mod_v_main_~x~0_13_32 (* 2 aux_div_v_main_~x~0_13_32) 6))) (and .cse4 .cse5 (<= main_~x~0 .cse7) (<= .cse7 main_~x~0)))))) (< aux_mod_v_main_~x~0_13_32 2))) .cse2 (or (= main_~x~0 3) (<= 5 main_~x~0))))) [2021-02-21 21:35:04,666 INFO L185 CegarLoopUtils]: At program point L13-5(lines 13 15) the Hoare annotation is: (or (and (exists ((aux_mod_v_main_~x~0_13_32 Int) (aux_div_v_main_~x~0_13_32 Int) (|v_main_#t~nondet7_13| Int)) (and (<= 1 aux_mod_v_main_~x~0_13_32) (< aux_mod_v_main_~x~0_13_32 2) (let ((.cse5 (* 2 |v_main_#t~nondet7_13|))) (let ((.cse1 (* aux_div_v_main_~x~0_13_32 2)) (.cse2 (<= 2 .cse5)) (.cse3 (<= .cse5 4294967294))) (or (let ((.cse0 (div (+ main_~x~0 (* aux_mod_v_main_~x~0_13_32 (- 1)) (* aux_div_v_main_~x~0_13_32 (- 2)) (- 10)) 2))) (and (<= 0 .cse0) (<= (div (+ (* main_~x~0 (- 1)) aux_mod_v_main_~x~0_13_32 .cse1 10) (- 2)) .cse0) .cse2 .cse3)) (and (= main_~x~0 (+ aux_mod_v_main_~x~0_13_32 .cse1 6)) (= |v_main_#t~nondet7_13| |main_#t~nondet7|)) (let ((.cse4 (+ aux_mod_v_main_~x~0_13_32 (* 2 aux_div_v_main_~x~0_13_32) 8))) (and (<= .cse4 main_~x~0) .cse2 (<= main_~x~0 .cse4) .cse3))))))) (or (= main_~x~0 3) (<= 5 main_~x~0))) (= main_~x~0 1)) [2021-02-21 21:35:04,666 INFO L185 CegarLoopUtils]: At program point L13-6(lines 13 15) the Hoare annotation is: (or (and (exists ((aux_mod_v_main_~x~0_13_32 Int) (aux_div_v_main_~x~0_13_32 Int) (|v_main_#t~nondet7_13| Int)) (and (<= 1 aux_mod_v_main_~x~0_13_32) (< aux_mod_v_main_~x~0_13_32 2) (let ((.cse5 (* 2 |v_main_#t~nondet7_13|))) (let ((.cse1 (* aux_div_v_main_~x~0_13_32 2)) (.cse2 (<= 2 .cse5)) (.cse3 (<= .cse5 4294967294))) (or (let ((.cse0 (div (+ main_~x~0 (* aux_mod_v_main_~x~0_13_32 (- 1)) (* aux_div_v_main_~x~0_13_32 (- 2)) (- 10)) 2))) (and (<= 0 .cse0) (<= (div (+ (* main_~x~0 (- 1)) aux_mod_v_main_~x~0_13_32 .cse1 10) (- 2)) .cse0) .cse2 .cse3)) (and (= main_~x~0 (+ aux_mod_v_main_~x~0_13_32 .cse1 6)) (= |v_main_#t~nondet7_13| |main_#t~nondet7|)) (let ((.cse4 (+ aux_mod_v_main_~x~0_13_32 (* 2 aux_div_v_main_~x~0_13_32) 8))) (and (<= .cse4 main_~x~0) .cse2 (<= main_~x~0 .cse4) .cse3))))))) (or (= main_~x~0 3) (<= 5 main_~x~0))) (= main_~x~0 1)) [2021-02-21 21:35:04,666 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 5 10) the Hoare annotation is: true [2021-02-21 21:35:04,667 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertEXIT(lines 5 10) the Hoare annotation is: true [2021-02-21 21:35:04,667 INFO L185 CegarLoopUtils]: At program point L7(line 7) the Hoare annotation is: (and (not (<= 1 |__VERIFIER_assert_#in~cond|)) (not (<= (+ |__VERIFIER_assert_#in~cond| 1) 0))) [2021-02-21 21:35:04,667 INFO L185 CegarLoopUtils]: At program point L6(lines 6 8) the Hoare annotation is: (let ((.cse0 (<= 1 __VERIFIER_assert_~cond))) (and (or .cse0 (<= (+ __VERIFIER_assert_~cond 1) 0) (not (<= (+ |__VERIFIER_assert_#in~cond| 1) 0))) (or .cse0 (not (<= 1 |__VERIFIER_assert_#in~cond|))))) [2021-02-21 21:35:04,667 INFO L185 CegarLoopUtils]: At program point L7-1(line 7) the Hoare annotation is: (and (not (<= 1 |__VERIFIER_assert_#in~cond|)) (not (<= (+ |__VERIFIER_assert_#in~cond| 1) 0))) [2021-02-21 21:35:04,667 INFO L192 CegarLoopUtils]: At program point L6-2(lines 5 10) the Hoare annotation is: true [2021-02-21 21:35:04,668 INFO L185 CegarLoopUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) the Hoare annotation is: (and (not (<= 1 |__VERIFIER_assert_#in~cond|)) (not (<= (+ |__VERIFIER_assert_#in~cond| 1) 0))) [2021-02-21 21:35:04,679 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,680 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,680 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,680 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,681 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,681 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,681 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,681 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,681 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~nondet7_13,QUANTIFIED] [2021-02-21 21:35:04,682 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~nondet7_13,QUANTIFIED] [2021-02-21 21:35:04,682 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,682 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,682 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~nondet7_13,QUANTIFIED] [2021-02-21 21:35:04,682 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,683 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,683 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~nondet7_13,QUANTIFIED] [2021-02-21 21:35:04,683 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,683 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,683 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~nondet7_13,QUANTIFIED] [2021-02-21 21:35:04,691 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,691 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,691 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,691 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,691 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,692 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,692 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,692 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,692 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~nondet7_13,QUANTIFIED] [2021-02-21 21:35:04,693 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~nondet7_13,QUANTIFIED] [2021-02-21 21:35:04,693 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,693 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,693 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~nondet7_13,QUANTIFIED] [2021-02-21 21:35:04,693 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,694 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,694 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~nondet7_13,QUANTIFIED] [2021-02-21 21:35:04,694 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,694 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,694 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~nondet7_13,QUANTIFIED] [2021-02-21 21:35:04,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 09:35:04 BoogieIcfgContainer [2021-02-21 21:35:04,698 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 21:35:04,699 INFO L168 Benchmark]: Toolchain (without parser) took 9566.66 ms. Allocated memory was 155.2 MB in the beginning and 192.9 MB in the end (delta: 37.7 MB). Free memory was 132.1 MB in the beginning and 143.9 MB in the end (delta: -11.8 MB). Peak memory consumption was 105.4 MB. Max. memory is 8.0 GB. [2021-02-21 21:35:04,700 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 155.2 MB. Free memory was 130.7 MB in the beginning and 130.6 MB in the end (delta: 77.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 21:35:04,701 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.16 ms. Allocated memory is still 155.2 MB. Free memory was 130.9 MB in the beginning and 121.6 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-21 21:35:04,702 INFO L168 Benchmark]: Boogie Preprocessor took 36.57 ms. Allocated memory is still 155.2 MB. Free memory was 121.6 MB in the beginning and 120.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-21 21:35:04,702 INFO L168 Benchmark]: RCFGBuilder took 443.08 ms. Allocated memory is still 155.2 MB. Free memory was 120.2 MB in the beginning and 138.5 MB in the end (delta: -18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 8.0 GB. [2021-02-21 21:35:04,703 INFO L168 Benchmark]: TraceAbstraction took 8799.25 ms. Allocated memory was 155.2 MB in the beginning and 192.9 MB in the end (delta: 37.7 MB). Free memory was 137.6 MB in the beginning and 143.9 MB in the end (delta: -6.3 MB). Peak memory consumption was 110.1 MB. Max. memory is 8.0 GB. [2021-02-21 21:35:04,708 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 155.2 MB. Free memory was 130.7 MB in the beginning and 130.6 MB in the end (delta: 77.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 267.16 ms. Allocated memory is still 155.2 MB. Free memory was 130.9 MB in the beginning and 121.6 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 36.57 ms. Allocated memory is still 155.2 MB. Free memory was 121.6 MB in the beginning and 120.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 443.08 ms. Allocated memory is still 155.2 MB. Free memory was 120.2 MB in the beginning and 138.5 MB in the end (delta: -18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 8799.25 ms. Allocated memory was 155.2 MB in the beginning and 192.9 MB in the end (delta: 37.7 MB). Free memory was 137.6 MB in the beginning and 143.9 MB in the end (delta: -6.3 MB). Peak memory consumption was 110.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_main_~x~0_13_32,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_main_~x~0_13_32,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_main_~x~0_13_32,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~nondet7_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~nondet7_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_main_~x~0_13_32,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~nondet7_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_main_~x~0_13_32,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~nondet7_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_main_~x~0_13_32,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~nondet7_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_main_~x~0_13_32,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_main_~x~0_13_32,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_main_~x~0_13_32,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~nondet7_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~nondet7_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_main_~x~0_13_32,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~nondet7_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_main_~x~0_13_32,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~nondet7_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_main_~x~0_13_32,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~nondet7_13,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: 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: 13]: Loop Invariant [2021-02-21 21:35:04,726 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,727 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,727 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,727 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,727 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,727 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,728 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,728 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,728 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~nondet7_13,QUANTIFIED] [2021-02-21 21:35:04,728 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~nondet7_13,QUANTIFIED] [2021-02-21 21:35:04,728 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,729 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,729 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~nondet7_13,QUANTIFIED] [2021-02-21 21:35:04,734 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,734 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,734 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~nondet7_13,QUANTIFIED] [2021-02-21 21:35:04,735 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,735 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,735 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~nondet7_13,QUANTIFIED] [2021-02-21 21:35:04,738 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,738 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,739 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,739 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,739 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,739 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,739 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,740 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,740 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~nondet7_13,QUANTIFIED] [2021-02-21 21:35:04,740 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~nondet7_13,QUANTIFIED] [2021-02-21 21:35:04,740 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,740 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,740 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~nondet7_13,QUANTIFIED] [2021-02-21 21:35:04,741 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,741 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,745 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~nondet7_13,QUANTIFIED] [2021-02-21 21:35:04,745 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,746 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_div_v_main_~x~0_13_32,QUANTIFIED] [2021-02-21 21:35:04,746 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_#t~nondet7_13,QUANTIFIED] Derived loop invariant: ((\exists aux_mod_v_main_~x~0_13_32 : int, aux_div_v_main_~x~0_13_32 : int, v_main_#t~nondet7_13 : int :: (1 <= aux_mod_v_main_~x~0_13_32 && aux_mod_v_main_~x~0_13_32 < 2) && (((((0 <= (x + aux_mod_v_main_~x~0_13_32 * -1 + aux_div_v_main_~x~0_13_32 * -2 + -10) / 2 && (x * -1 + aux_mod_v_main_~x~0_13_32 + aux_div_v_main_~x~0_13_32 * 2 + 10) / -2 <= (x + aux_mod_v_main_~x~0_13_32 * -1 + aux_div_v_main_~x~0_13_32 * -2 + -10) / 2) && 2 <= 2 * v_main_#t~nondet7_13) && 2 * v_main_#t~nondet7_13 <= 4294967294) || (x == aux_mod_v_main_~x~0_13_32 + aux_div_v_main_~x~0_13_32 * 2 + 6 && v_main_#t~nondet7_13 == aux-__VERIFIER_nondet_int()-aux)) || (((aux_mod_v_main_~x~0_13_32 + 2 * aux_div_v_main_~x~0_13_32 + 8 <= x && 2 <= 2 * v_main_#t~nondet7_13) && x <= aux_mod_v_main_~x~0_13_32 + 2 * aux_div_v_main_~x~0_13_32 + 8) && 2 * v_main_#t~nondet7_13 <= 4294967294))) && (x == 3 || 5 <= x)) || x == 1 - ProcedureContractResult [Line: 11]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 5]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.6s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 85 SDtfs, 52 SDslu, 122 SDs, 0 SdLazy, 117 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 37 LocationsWithAnnotation, 51 PreInvPairs, 67 NumberOfFragments, 802 HoareAnnotationTreeSize, 51 FomulaSimplifications, 287 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 37 FomulaSimplificationsInter, 1214 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...