/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+lhb-reducer.c
--------------------------------------------------------------------------------
This is Ultimate 0.2.1-dev-1a84f73
[2021-05-01 07:25:51,458 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-05-01 07:25:51,462 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
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[2021-05-01 07:25:51,522 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
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[2021-05-01 07:25:51,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-05-01 07:25:51,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
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[2021-05-01 07:25:51,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-05-01 07:25:51,572 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
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[2021-05-01 07:25:51,602 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf
[2021-05-01 07:25:51,623 INFO L113 SettingsManager]: Loading preferences was successful
[2021-05-01 07:25:51,624 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-05-01 07:25:51,629 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-05-01 07:25:51,629 INFO L138 SettingsManager]: * sizeof long=4
[2021-05-01 07:25:51,629 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-05-01 07:25:51,629 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-05-01 07:25:51,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-05-01 07:25:51,629 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-05-01 07:25:51,629 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-05-01 07:25:51,630 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-05-01 07:25:51,631 INFO L138 SettingsManager]: * sizeof long double=12
[2021-05-01 07:25:51,631 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-05-01 07:25:51,631 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-05-01 07:25:51,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-05-01 07:25:51,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-05-01 07:25:51,632 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-05-01 07:25:51,632 INFO L138 SettingsManager]: * To the following directory=./dump/
[2021-05-01 07:25:51,632 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-05-01 07:25:51,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-05-01 07:25:51,632 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-05-01 07:25:51,633 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation
[2021-05-01 07:25:51,633 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-05-01 07:25:51,633 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN
[2021-05-01 07:25:51,633 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2021-05-01 07:25:52,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-05-01 07:25:52,170 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-05-01 07:25:52,173 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-05-01 07:25:52,175 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-05-01 07:25:52,187 INFO L275 PluginConnector]: CDTParser initialized
[2021-05-01 07:25:52,189 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+lhb-reducer.c
[2021-05-01 07:25:52,357 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63e8224dc/930450ade88a420f85b92e8bbf721ae0/FLAG9803dee8f
[2021-05-01 07:25:52,997 INFO L306 CDTParser]: Found 1 translation units.
[2021-05-01 07:25:52,998 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/mod3.c.v+lhb-reducer.c
[2021-05-01 07:25:53,004 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63e8224dc/930450ade88a420f85b92e8bbf721ae0/FLAG9803dee8f
[2021-05-01 07:25:53,021 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63e8224dc/930450ade88a420f85b92e8bbf721ae0
[2021-05-01 07:25:53,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-05-01 07:25:53,025 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2021-05-01 07:25:53,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-05-01 07:25:53,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-05-01 07:25:53,031 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-05-01 07:25:53,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 07:25:53" (1/1) ...
[2021-05-01 07:25:53,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@100152ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:25:53, skipping insertion in model container
[2021-05-01 07:25:53,033 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 07:25:53" (1/1) ...
[2021-05-01 07:25:53,038 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-05-01 07:25:53,060 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-05-01 07:25:53,220 WARN L224 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.v+lhb-reducer.c[2239,2252]
[2021-05-01 07:25:53,251 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-05-01 07:25:53,265 INFO L203 MainTranslator]: Completed pre-run
[2021-05-01 07:25:53,301 WARN L224 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.v+lhb-reducer.c[2239,2252]
[2021-05-01 07:25:53,304 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-05-01 07:25:53,319 INFO L208 MainTranslator]: Completed translation
[2021-05-01 07:25:53,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:25:53 WrapperNode
[2021-05-01 07:25:53,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-05-01 07:25:53,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-05-01 07:25:53,322 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-05-01 07:25:53,322 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-05-01 07:25:53,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:25:53" (1/1) ...
[2021-05-01 07:25:53,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:25:53" (1/1) ...
[2021-05-01 07:25:53,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:25:53" (1/1) ...
[2021-05-01 07:25:53,345 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:25:53" (1/1) ...
[2021-05-01 07:25:53,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:25:53" (1/1) ...
[2021-05-01 07:25:53,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:25:53" (1/1) ...
[2021-05-01 07:25:53,359 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:25:53" (1/1) ...
[2021-05-01 07:25:53,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-05-01 07:25:53,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-05-01 07:25:53,361 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-05-01 07:25:53,361 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-05-01 07:25:53,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:25:53" (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
[2021-05-01 07:25:53,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2021-05-01 07:25:53,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-05-01 07:25:53,519 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2021-05-01 07:25:53,520 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2021-05-01 07:25:53,520 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2021-05-01 07:25:53,520 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2021-05-01 07:25:53,520 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2021-05-01 07:25:53,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-05-01 07:25:53,521 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2021-05-01 07:25:53,521 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2021-05-01 07:25:53,521 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2021-05-01 07:25:53,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2021-05-01 07:25:53,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-05-01 07:25:53,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-05-01 07:25:53,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2021-05-01 07:25:53,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2021-05-01 07:25:53,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-05-01 07:25:53,818 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-05-01 07:25:53,818 INFO L299 CfgBuilder]: Removed 0 assume(true) statements.
[2021-05-01 07:25:53,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 07:25:53 BoogieIcfgContainer
[2021-05-01 07:25:53,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-05-01 07:25:53,821 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-05-01 07:25:53,821 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-05-01 07:25:53,824 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-05-01 07:25:53,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.05 07:25:53" (1/3) ...
[2021-05-01 07:25:53,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47fb8ab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 07:25:53, skipping insertion in model container
[2021-05-01 07:25:53,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 07:25:53" (2/3) ...
[2021-05-01 07:25:53,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47fb8ab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 07:25:53, skipping insertion in model container
[2021-05-01 07:25:53,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 07:25:53" (3/3) ...
[2021-05-01 07:25:53,826 INFO L111 eAbstractionObserver]: Analyzing ICFG mod3.c.v+lhb-reducer.c
[2021-05-01 07:25:53,830 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION
[2021-05-01 07:25:53,833 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2021-05-01 07:25:53,843 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-05-01 07:25:53,858 INFO L376 AbstractCegarLoop]: Interprodecural is true
[2021-05-01 07:25:53,858 INFO L377 AbstractCegarLoop]: Hoare is true
[2021-05-01 07:25:53,858 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation
[2021-05-01 07:25:53,859 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2021-05-01 07:25:53,859 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-05-01 07:25:53,859 INFO L381 AbstractCegarLoop]: Difference is false
[2021-05-01 07:25:53,859 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-05-01 07:25:53,859 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2021-05-01 07:25:53,872 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 22 states have (on average 1.5) internal successors, (33), 23 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2021-05-01 07:25:53,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2021-05-01 07:25:53,877 INFO L511 BasicCegarLoop]: Found error trace
[2021-05-01 07:25:53,877 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-05-01 07:25:53,878 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-05-01 07:25:53,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-05-01 07:25:53,881 INFO L82 PathProgramCache]: Analyzing trace with hash 1261463571, now seen corresponding path program 1 times
[2021-05-01 07:25:53,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2021-05-01 07:25:53,887 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1665375495]
[2021-05-01 07:25:53,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-05-01 07:25:53,941 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation
[2021-05-01 07:25:54,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-05-01 07:25:54,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 07:25:54,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 07:25:54,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 07:25:54,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155
[2021-05-01 07:25:54,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 07:25:54,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4
[2021-05-01 07:25:54,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 07:25:54,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 07:25:54,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-05-01 07:25:54,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-05-01 07:25:54,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-05-01 07:25:54,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-05-01 07:25:54,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-05-01 07:25:54,417 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2021-05-01 07:25:54,417 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1665375495]
[2021-05-01 07:25:54,421 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1665375495] provided 1 perfect and 0 imperfect interpolant sequences
[2021-05-01 07:25:54,422 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-05-01 07:25:54,422 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-05-01 07:25:54,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087303884]
[2021-05-01 07:25:54,429 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-05-01 07:25:54,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2021-05-01 07:25:54,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-05-01 07:25:54,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-05-01 07:25:54,449 INFO L87 Difference]: Start difference. First operand has 28 states, 22 states have (on average 1.5) internal successors, (33), 23 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-05-01 07:25:55,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-05-01 07:25:55,035 INFO L93 Difference]: Finished difference Result 59 states and 81 transitions.
[2021-05-01 07:25:55,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-05-01 07:25:55,038 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15
[2021-05-01 07:25:55,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-05-01 07:25:55,044 INFO L225 Difference]: With dead ends: 59
[2021-05-01 07:25:55,044 INFO L226 Difference]: Without dead ends: 0
[2021-05-01 07:25:55,047 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 202.7ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2021-05-01 07:25:55,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2021-05-01 07:25:55,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2021-05-01 07:25:55,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-05-01 07:25:55,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2021-05-01 07:25:55,069 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15
[2021-05-01 07:25:55,070 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-05-01 07:25:55,070 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2021-05-01 07:25:55,070 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-05-01 07:25:55,070 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2021-05-01 07:25:55,070 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2021-05-01 07:25:55,071 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-05-01 07:25:55,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2021-05-01 07:25:55,365 INFO L198 CegarLoopUtils]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed.
[2021-05-01 07:25:55,366 INFO L198 CegarLoopUtils]: For program point reach_errorENTRY(line 4) no Hoare annotation was computed.
[2021-05-01 07:25:55,366 INFO L198 CegarLoopUtils]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed.
[2021-05-01 07:25:55,366 INFO L201 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true
[2021-05-01 07:25:55,366 INFO L194 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= ~__tmp_91_0~0 |old(~__tmp_91_0~0)|) (= ~__return_121~0 |old(~__return_121~0)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~__tmp_88_0~0 |old(~__tmp_88_0~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= ~__tmp_112_0~0 |old(~__tmp_112_0~0)|) (= ~__tmp_94_0~0 |old(~__tmp_94_0~0)|) (= |old(#valid)| |#valid|) (= ~__tmp_88_1~0 |old(~__tmp_88_1~0)|) (= ~__tmp_91_1~0 |old(~__tmp_91_1~0)|) (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string4.base| |old(#t~string4.base)|) (= ~__return_main~0 |old(~__return_main~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~__tmp_93_0~0 |old(~__tmp_93_0~0)|) (= |#NULL.offset| |old(#NULL.offset)|))
[2021-05-01 07:25:55,367 INFO L201 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true
[2021-05-01 07:25:55,367 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true
[2021-05-01 07:25:55,367 INFO L201 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true
[2021-05-01 07:25:55,367 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2021-05-01 07:25:55,367 INFO L201 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true
[2021-05-01 07:25:55,368 INFO L194 CegarLoopUtils]: At program point L97(lines 97 106) the Hoare annotation is: (and (not (= main_~__VERIFIER_assert__cond~0 0)) (<= main_~main__x~0 (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ .cse2 main_~main__x~0) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ .cse2 (* .cse1 (- 3)) main_~main__x~0) 4294967296))))))))
[2021-05-01 07:25:55,368 INFO L194 CegarLoopUtils]: At program point L122(lines 25 145) the Hoare annotation is: (<= main_~main__x~0 (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ .cse2 main_~main__x~0) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ .cse2 (* .cse1 (- 3)) main_~main__x~0) 4294967296)))))))
[2021-05-01 07:25:55,369 INFO L201 CegarLoopUtils]: At program point mainEXIT(lines 16 151) the Hoare annotation is: true
[2021-05-01 07:25:55,369 INFO L194 CegarLoopUtils]: At program point L56(lines 26 114) the Hoare annotation is: (<= main_~main__x~0 (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ .cse2 main_~main__x~0) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ .cse2 (* .cse1 (- 3)) main_~main__x~0) 4294967296)))))))
[2021-05-01 07:25:55,369 INFO L201 CegarLoopUtils]: At program point L23(lines 23 150) the Hoare annotation is: true
[2021-05-01 07:25:55,369 INFO L194 CegarLoopUtils]: At program point L48(lines 48 85) the Hoare annotation is: (<= main_~main__x~0 (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ .cse2 main_~main__x~0) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ .cse2 (* .cse1 (- 3)) main_~main__x~0) 4294967296)))))))
[2021-05-01 07:25:55,370 INFO L194 CegarLoopUtils]: At program point L44(lines 26 114) the Hoare annotation is: (<= main_~main__x~0 (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ .cse2 main_~main__x~0) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ .cse2 (* .cse1 (- 3)) main_~main__x~0) 4294967296)))))))
[2021-05-01 07:25:55,370 INFO L194 CegarLoopUtils]: At program point L90(lines 90 112) the Hoare annotation is: (<= main_~main__x~0 (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ .cse2 main_~main__x~0) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ .cse2 (* .cse1 (- 3)) main_~main__x~0) 4294967296)))))))
[2021-05-01 07:25:55,370 INFO L194 CegarLoopUtils]: At program point L37(lines 37 113) the Hoare annotation is: (<= main_~main__x~0 (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ .cse2 main_~main__x~0) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ .cse2 (* .cse1 (- 3)) main_~main__x~0) 4294967296)))))))
[2021-05-01 07:25:55,370 INFO L194 CegarLoopUtils]: At program point L99(line 99) the Hoare annotation is: false
[2021-05-01 07:25:55,370 INFO L201 CegarLoopUtils]: At program point L128(lines 128 143) the Hoare annotation is: true
[2021-05-01 07:25:55,371 INFO L194 CegarLoopUtils]: At program point L62(lines 62 84) the Hoare annotation is: (<= main_~main__x~0 (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ .cse2 main_~main__x~0) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ .cse2 (* .cse1 (- 3)) main_~main__x~0) 4294967296)))))))
[2021-05-01 07:25:55,371 INFO L201 CegarLoopUtils]: At program point L25(lines 25 145) the Hoare annotation is: true
[2021-05-01 07:25:55,371 INFO L201 CegarLoopUtils]: At program point L83(lines 17 151) the Hoare annotation is: true
[2021-05-01 07:25:55,371 INFO L201 CegarLoopUtils]: At program point mainFINAL(lines 16 151) the Hoare annotation is: true
[2021-05-01 07:25:55,372 INFO L194 CegarLoopUtils]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 99) the Hoare annotation is: false
[2021-05-01 07:25:55,372 INFO L194 CegarLoopUtils]: At program point mainENTRY(lines 16 151) the Hoare annotation is: (and (= ~__tmp_88_1~0 |old(~__tmp_88_1~0)|) (= |old(~__tmp_112_0~0)| ~__tmp_112_0~0) (= ~__tmp_91_1~0 |old(~__tmp_91_1~0)|) (= ~__tmp_91_0~0 |old(~__tmp_91_0~0)|) (= |old(~__return_121~0)| ~__return_121~0) (= ~__tmp_88_0~0 |old(~__tmp_88_0~0)|) (= ~__tmp_93_0~0 |old(~__tmp_93_0~0)|) (= ~__tmp_94_0~0 |old(~__tmp_94_0~0)|))
[2021-05-01 07:25:55,372 INFO L201 CegarLoopUtils]: At program point L117(lines 117 144) the Hoare annotation is: true
[2021-05-01 07:25:55,372 INFO L201 CegarLoopUtils]: At program point L142(lines 25 145) the Hoare annotation is: true
[2021-05-01 07:25:55,372 INFO L194 CegarLoopUtils]: At program point L39(lines 39 86) the Hoare annotation is: (<= main_~main__x~0 (let ((.cse0 (div main_~main__x~0 4294967296))) (let ((.cse2 (* .cse0 (- 4294967296)))) (let ((.cse1 (div (+ .cse2 main_~main__x~0) 3))) (+ (* 4294967296 .cse0) (* 3 .cse1) (* 4294967296 (div (+ .cse2 (* .cse1 (- 3)) main_~main__x~0) 4294967296)))))))
[2021-05-01 07:25:55,372 INFO L201 CegarLoopUtils]: At program point L134(lines 25 145) the Hoare annotation is: true
[2021-05-01 07:25:55,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.05 07:25:55 BoogieIcfgContainer
[2021-05-01 07:25:55,395 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-05-01 07:25:55,396 INFO L168 Benchmark]: Toolchain (without parser) took 2370.98 ms. Allocated memory is still 199.2 MB. Free memory was 163.5 MB in the beginning and 122.0 MB in the end (delta: 41.5 MB). Peak memory consumption was 42.2 MB. Max. memory is 8.0 GB.
[2021-05-01 07:25:55,398 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 199.2 MB. Free memory is still 180.5 MB. There was no memory consumed. Max. memory is 8.0 GB.
[2021-05-01 07:25:55,398 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.96 ms. Allocated memory is still 199.2 MB. Free memory was 163.2 MB in the beginning and 180.4 MB in the end (delta: -17.1 MB). Peak memory consumption was 11.7 MB. Max. memory is 8.0 GB.
[2021-05-01 07:25:55,400 INFO L168 Benchmark]: Boogie Preprocessor took 38.40 ms. Allocated memory is still 199.2 MB. Free memory was 180.4 MB in the beginning and 178.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB.
[2021-05-01 07:25:55,401 INFO L168 Benchmark]: RCFGBuilder took 459.22 ms. Allocated memory is still 199.2 MB. Free memory was 178.8 MB in the beginning and 161.2 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB.
[2021-05-01 07:25:55,401 INFO L168 Benchmark]: TraceAbstraction took 1574.15 ms. Allocated memory is still 199.2 MB. Free memory was 160.9 MB in the beginning and 122.0 MB in the end (delta: 38.9 MB). Peak memory consumption was 39.9 MB. Max. memory is 8.0 GB.
[2021-05-01 07:25:55,406 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.36 ms. Allocated memory is still 199.2 MB. Free memory is still 180.5 MB. There was no memory consumed. Max. memory is 8.0 GB.
* CACSL2BoogieTranslator took 292.96 ms. Allocated memory is still 199.2 MB. Free memory was 163.2 MB in the beginning and 180.4 MB in the end (delta: -17.1 MB). Peak memory consumption was 11.7 MB. Max. memory is 8.0 GB.
* Boogie Preprocessor took 38.40 ms. Allocated memory is still 199.2 MB. Free memory was 180.4 MB in the beginning and 178.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB.
* RCFGBuilder took 459.22 ms. Allocated memory is still 199.2 MB. Free memory was 178.8 MB in the beginning and 161.2 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB.
* TraceAbstraction took 1574.15 ms. Allocated memory is still 199.2 MB. Free memory was 160.9 MB in the beginning and 122.0 MB in the end (delta: 38.9 MB). Peak memory consumption was 39.9 MB. Max. memory is 8.0 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 99]: call to reach_error is unreachable
For all program executions holds that call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1214.5ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 11.0ms, AutomataDifference: 617.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 294.0ms, InitialAbstractionConstructionTime: 7.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 28 SDtfs, 17 SDslu, 32 SDs, 0 SdLazy, 63 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 470.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 202.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 8.0ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 28 LocationsWithAnnotation, 28 PreInvPairs, 59 NumberOfFragments, 474 HoareAnnotationTreeSize, 28 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 58.0ms HoareSimplificationTime, 28 FomulaSimplificationsInter, 33 FormulaSimplificationTreeSizeReductionInter, 216.1ms 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
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- InvariantResult [Line: 25]: Loop Invariant
Derived loop invariant: 1
- InvariantResult [Line: 26]: Loop Invariant
Derived loop invariant: main__x <= 4294967296 * (main__x / 4294967296) + 3 * ((main__x / 4294967296 * -4294967296 + main__x) / 3) + 4294967296 * ((main__x / 4294967296 * -4294967296 + (main__x / 4294967296 * -4294967296 + main__x) / 3 * -3 + main__x) / 4294967296)
- InvariantResult [Line: 26]: Loop Invariant
Derived loop invariant: main__x <= 4294967296 * (main__x / 4294967296) + 3 * ((main__x / 4294967296 * -4294967296 + main__x) / 3) + 4294967296 * ((main__x / 4294967296 * -4294967296 + (main__x / 4294967296 * -4294967296 + main__x) / 3 * -3 + main__x) / 4294967296)
- InvariantResult [Line: 17]: Loop Invariant
Derived loop invariant: 1
- InvariantResult [Line: 25]: Loop Invariant
Derived loop invariant: 1
- InvariantResult [Line: 25]: Loop Invariant
Derived loop invariant: main__x <= 4294967296 * (main__x / 4294967296) + 3 * ((main__x / 4294967296 * -4294967296 + main__x) / 3) + 4294967296 * ((main__x / 4294967296 * -4294967296 + (main__x / 4294967296 * -4294967296 + main__x) / 3 * -3 + main__x) / 4294967296)
- ProcedureContractResult [Line: 16]: Procedure Contract for main
Derived contract for procedure main: 1
RESULT: Ultimate proved your program to be correct!
Received shutdown request...