/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/eca-rers2012/Problem10_label32.c
--------------------------------------------------------------------------------
This is Ultimate 0.2.0-7d8eed3
[2020-11-07 01:51:23,257 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-11-07 01:51:23,260 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-11-07 01:51:23,317 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-11-07 01:51:23,317 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-11-07 01:51:23,322 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-11-07 01:51:23,327 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2020-11-07 01:51:23,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-11-07 01:51:23,356 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
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[2020-11-07 01:51:23,362 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-11-07 01:51:23,363 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-11-07 01:51:23,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-11-07 01:51:23,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-11-07 01:51:23,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-11-07 01:51:23,404 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-11-07 01:51:23,407 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-11-07 01:51:23,409 INFO L181 SettingsManager]: Resetting Referee preferences to default values
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[2020-11-07 01:51:23,441 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2020-11-07 01:51:23,445 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf
[2020-11-07 01:51:23,472 INFO L113 SettingsManager]: Loading preferences was successful
[2020-11-07 01:51:23,473 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-11-07 01:51:23,477 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-11-07 01:51:23,478 INFO L138 SettingsManager]: * sizeof long=4
[2020-11-07 01:51:23,478 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-11-07 01:51:23,478 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-11-07 01:51:23,478 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-11-07 01:51:23,479 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-11-07 01:51:23,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-11-07 01:51:23,479 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-11-07 01:51:23,480 INFO L138 SettingsManager]: * sizeof long double=12
[2020-11-07 01:51:23,480 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-11-07 01:51:23,481 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-11-07 01:51:23,481 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-11-07 01:51:23,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-11-07 01:51:23,482 INFO L138 SettingsManager]: * Size of a code block=SingleStatement
[2020-11-07 01:51:23,482 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-11-07 01:51:23,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-11-07 01:51:23,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-11-07 01:51:23,482 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-11-07 01:51:23,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation
[2020-11-07 01:51:23,483 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-11-07 01:51:23,483 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2020-11-07 01:51:24,004 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-11-07 01:51:24,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-11-07 01:51:24,042 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-11-07 01:51:24,044 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-11-07 01:51:24,045 INFO L275 PluginConnector]: CDTParser initialized
[2020-11-07 01:51:24,047 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label32.c
[2020-11-07 01:51:24,131 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afb4c040b/ad39432f4d0040ae88f43f3e32ef550a/FLAG3b3f31e09
[2020-11-07 01:51:24,992 INFO L306 CDTParser]: Found 1 translation units.
[2020-11-07 01:51:24,992 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label32.c
[2020-11-07 01:51:25,026 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afb4c040b/ad39432f4d0040ae88f43f3e32ef550a/FLAG3b3f31e09
[2020-11-07 01:51:25,209 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afb4c040b/ad39432f4d0040ae88f43f3e32ef550a
[2020-11-07 01:51:25,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-11-07 01:51:25,226 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-11-07 01:51:25,231 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-11-07 01:51:25,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-11-07 01:51:25,236 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-11-07 01:51:25,237 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:51:25" (1/1) ...
[2020-11-07 01:51:25,242 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30b7c9e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:25, skipping insertion in model container
[2020-11-07 01:51:25,242 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:51:25" (1/1) ...
[2020-11-07 01:51:25,252 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-11-07 01:51:25,322 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-11-07 01:51:25,813 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-11-07 01:51:25,826 INFO L203 MainTranslator]: Completed pre-run
[2020-11-07 01:51:26,023 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-11-07 01:51:26,042 INFO L208 MainTranslator]: Completed translation
[2020-11-07 01:51:26,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:26 WrapperNode
[2020-11-07 01:51:26,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-11-07 01:51:26,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-11-07 01:51:26,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-11-07 01:51:26,044 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-11-07 01:51:26,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:26" (1/1) ...
[2020-11-07 01:51:26,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:26" (1/1) ...
[2020-11-07 01:51:26,082 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:26" (1/1) ...
[2020-11-07 01:51:26,083 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:26" (1/1) ...
[2020-11-07 01:51:26,124 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:26" (1/1) ...
[2020-11-07 01:51:26,157 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:26" (1/1) ...
[2020-11-07 01:51:26,176 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:26" (1/1) ...
[2020-11-07 01:51:26,194 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-11-07 01:51:26,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-11-07 01:51:26,198 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-11-07 01:51:26,199 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-11-07 01:51:26,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:26" (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
[2020-11-07 01:51:26,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-11-07 01:51:26,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-11-07 01:51:26,304 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2020-11-07 01:51:26,304 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output
[2020-11-07 01:51:26,304 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-11-07 01:51:26,304 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output
[2020-11-07 01:51:26,305 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-11-07 01:51:26,305 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-11-07 01:51:26,305 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2020-11-07 01:51:26,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-11-07 01:51:26,305 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-11-07 01:51:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure exit
[2020-11-07 01:51:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-11-07 01:51:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-11-07 01:51:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2020-11-07 01:51:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-11-07 01:51:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-11-07 01:51:26,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-11-07 01:51:26,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-11-07 01:51:28,031 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-11-07 01:51:28,031 INFO L298 CfgBuilder]: Removed 1 assume(true) statements.
[2020-11-07 01:51:28,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:51:28 BoogieIcfgContainer
[2020-11-07 01:51:28,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-11-07 01:51:28,038 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-11-07 01:51:28,038 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-11-07 01:51:28,042 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-11-07 01:51:28,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:51:25" (1/3) ...
[2020-11-07 01:51:28,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@797c36b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:51:28, skipping insertion in model container
[2020-11-07 01:51:28,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:51:26" (2/3) ...
[2020-11-07 01:51:28,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@797c36b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:51:28, skipping insertion in model container
[2020-11-07 01:51:28,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:51:28" (3/3) ...
[2020-11-07 01:51:28,046 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label32.c
[2020-11-07 01:51:28,065 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-11-07 01:51:28,070 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-11-07 01:51:28,084 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-11-07 01:51:28,115 INFO L377 AbstractCegarLoop]: Interprodecural is true
[2020-11-07 01:51:28,116 INFO L378 AbstractCegarLoop]: Hoare is true
[2020-11-07 01:51:28,116 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation
[2020-11-07 01:51:28,116 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-11-07 01:51:28,116 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-11-07 01:51:28,116 INFO L382 AbstractCegarLoop]: Difference is false
[2020-11-07 01:51:28,116 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-11-07 01:51:28,117 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-11-07 01:51:28,146 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states.
[2020-11-07 01:51:28,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54
[2020-11-07 01:51:28,159 INFO L414 BasicCegarLoop]: Found error trace
[2020-11-07 01:51:28,160 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, 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]
[2020-11-07 01:51:28,161 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-07 01:51:28,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-11-07 01:51:28,169 INFO L82 PathProgramCache]: Analyzing trace with hash -694923564, now seen corresponding path program 1 times
[2020-11-07 01:51:28,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-11-07 01:51:28,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1512178403]
[2020-11-07 01:51:28,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-07 01:51:28,303 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation
[2020-11-07 01:51:28,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-07 01:51:28,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-11-07 01:51:28,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-07 01:51:28,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-07 01:51:28,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1512178403]
[2020-11-07 01:51:28,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-11-07 01:51:28,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-11-07 01:51:28,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993153480]
[2020-11-07 01:51:28,734 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-11-07 01:51:28,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-11-07 01:51:28,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-11-07 01:51:28,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-11-07 01:51:28,757 INFO L87 Difference]: Start difference. First operand 468 states. Second operand 4 states.
[2020-11-07 01:51:31,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-11-07 01:51:31,971 INFO L93 Difference]: Finished difference Result 1102 states and 1528 transitions.
[2020-11-07 01:51:31,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-11-07 01:51:31,973 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53
[2020-11-07 01:51:31,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-11-07 01:51:31,997 INFO L225 Difference]: With dead ends: 1102
[2020-11-07 01:51:31,998 INFO L226 Difference]: Without dead ends: 584
[2020-11-07 01:51:32,015 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-11-07 01:51:32,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states.
[2020-11-07 01:51:32,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 554.
[2020-11-07 01:51:32,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states.
[2020-11-07 01:51:32,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 651 transitions.
[2020-11-07 01:51:32,243 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 651 transitions. Word has length 53
[2020-11-07 01:51:32,244 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-11-07 01:51:32,244 INFO L481 AbstractCegarLoop]: Abstraction has 554 states and 651 transitions.
[2020-11-07 01:51:32,245 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-11-07 01:51:32,245 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 651 transitions.
[2020-11-07 01:51:32,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133
[2020-11-07 01:51:32,264 INFO L414 BasicCegarLoop]: Found error trace
[2020-11-07 01:51:32,266 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-11-07 01:51:32,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-11-07 01:51:32,266 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-11-07 01:51:32,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-11-07 01:51:32,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1927077901, now seen corresponding path program 1 times
[2020-11-07 01:51:32,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-11-07 01:51:32,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [653921836]
[2020-11-07 01:51:32,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-11-07 01:51:32,949 WARN L194 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 54
[2020-11-07 01:51:33,134 WARN L194 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52
[2020-11-07 01:51:33,563 ERROR L275 FreeRefinementEngine]: Caught unknown exception: No quantified variables given
[2020-11-07 01:51:33,563 WARN L340 FreeRefinementEngine]: Global settings require throwing the following exception
[2020-11-07 01:51:33,564 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver:
de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: No quantified variables given
at de.uni_freiburg.informatik.ultimate.logic.NoopScript.quantifier(NoopScript.java:505)
at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.quantifier(WrapperScript.java:266)
at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.quantifier(WrapperScript.java:266)
at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.fastupr.FastUPRCore.checkForAll(FastUPRCore.java:370)
at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.fastupr.FastUPRCore.periodLoop(FastUPRCore.java:179)
at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.fastupr.FastUPRCore.prefixLoop(FastUPRCore.java:154)
at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.fastupr.FastUPRCore.<init>(FastUPRCore.java:145)
at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.Accelerator.fastUprAcceleration(Accelerator.java:109)
at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.Accelerator.accelerateLoop(Accelerator.java:89)
at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.acceleratedInterpolationCore(AcceleratedInterpolation.java:292)
at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.<init>(AcceleratedInterpolation.java:227)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:147)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.<init>(AutomatonFreeRefinementEngine.java:84)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.<init>(TraceAbstractionRefinementEngine.java:74)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:343)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:197)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:149)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
[2020-11-07 01:51:33,571 INFO L168 Benchmark]: Toolchain (without parser) took 8353.66 ms. Allocated memory was 158.3 MB in the beginning and 229.6 MB in the end (delta: 71.3 MB). Free memory was 133.1 MB in the beginning and 193.3 MB in the end (delta: -60.3 MB). Peak memory consumption was 132.6 MB. Max. memory is 8.0 GB.
[2020-11-07 01:51:33,572 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 158.3 MB. Free memory was 132.8 MB in the beginning and 132.7 MB in the end (delta: 80.3 kB). There was no memory consumed. Max. memory is 8.0 GB.
[2020-11-07 01:51:33,573 INFO L168 Benchmark]: CACSL2BoogieTranslator took 812.17 ms. Allocated memory is still 158.3 MB. Free memory was 132.5 MB in the beginning and 136.9 MB in the end (delta: -4.5 MB). Peak memory consumption was 31.2 MB. Max. memory is 8.0 GB.
[2020-11-07 01:51:33,574 INFO L168 Benchmark]: Boogie Preprocessor took 153.59 ms. Allocated memory is still 158.3 MB. Free memory was 136.9 MB in the beginning and 132.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB.
[2020-11-07 01:51:33,575 INFO L168 Benchmark]: RCFGBuilder took 1837.53 ms. Allocated memory is still 158.3 MB. Free memory was 132.2 MB in the beginning and 73.9 MB in the end (delta: 58.4 MB). Peak memory consumption was 62.0 MB. Max. memory is 8.0 GB.
[2020-11-07 01:51:33,579 INFO L168 Benchmark]: TraceAbstraction took 5529.83 ms. Allocated memory was 158.3 MB in the beginning and 229.6 MB in the end (delta: 71.3 MB). Free memory was 73.3 MB in the beginning and 193.3 MB in the end (delta: -120.0 MB). Peak memory consumption was 71.9 MB. Max. memory is 8.0 GB.
[2020-11-07 01:51:33,586 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.35 ms. Allocated memory is still 158.3 MB. Free memory was 132.8 MB in the beginning and 132.7 MB in the end (delta: 80.3 kB). There was no memory consumed. Max. memory is 8.0 GB.
* CACSL2BoogieTranslator took 812.17 ms. Allocated memory is still 158.3 MB. Free memory was 132.5 MB in the beginning and 136.9 MB in the end (delta: -4.5 MB). Peak memory consumption was 31.2 MB. Max. memory is 8.0 GB.
* Boogie Preprocessor took 153.59 ms. Allocated memory is still 158.3 MB. Free memory was 136.9 MB in the beginning and 132.2 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB.
* RCFGBuilder took 1837.53 ms. Allocated memory is still 158.3 MB. Free memory was 132.2 MB in the beginning and 73.9 MB in the end (delta: 58.4 MB). Peak memory consumption was 62.0 MB. Max. memory is 8.0 GB.
* TraceAbstraction took 5529.83 ms. Allocated memory was 158.3 MB in the beginning and 229.6 MB in the end (delta: 71.3 MB). Free memory was 73.3 MB in the beginning and 193.3 MB in the end (delta: -120.0 MB). Peak memory consumption was 71.9 MB. Max. memory is 8.0 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- ExceptionOrErrorResult: SMTLIBException: No quantified variables given
de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: No quantified variables given: de.uni_freiburg.informatik.ultimate.logic.NoopScript.quantifier(NoopScript.java:505)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
Received shutdown request...