/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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-lit/ddlm2013.i
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This is Ultimate 0.1.25-8fc6572
[2020-07-10 20:24:43,444 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-07-10 20:24:43,447 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-07-10 20:24:43,466 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-07-10 20:24:43,467 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-07-10 20:24:43,469 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-07-10 20:24:43,471 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-07-10 20:24:43,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-07-10 20:24:43,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-07-10 20:24:43,488 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-07-10 20:24:43,490 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
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[2020-07-10 20:24:43,492 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-07-10 20:24:43,494 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-07-10 20:24:43,497 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-07-10 20:24:43,498 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-07-10 20:24:43,499 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-07-10 20:24:43,500 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-07-10 20:24:43,502 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-07-10 20:24:43,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-07-10 20:24:43,513 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-07-10 20:24:43,517 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-07-10 20:24:43,518 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-07-10 20:24:43,520 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-07-10 20:24:43,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-07-10 20:24:43,522 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-07-10 20:24:43,522 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-07-10 20:24:43,525 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
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[2020-07-10 20:24:43,527 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
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[2020-07-10 20:24:43,533 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2020-07-10 20:24:43,535 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-07-10 20:24:43,536 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf
[2020-07-10 20:24:43,565 INFO L113 SettingsManager]: Loading preferences was successful
[2020-07-10 20:24:43,567 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-07-10 20:24:43,569 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-07-10 20:24:43,569 INFO L138 SettingsManager]: * sizeof long=4
[2020-07-10 20:24:43,569 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-07-10 20:24:43,569 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-07-10 20:24:43,570 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-07-10 20:24:43,570 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-07-10 20:24:43,570 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-07-10 20:24:43,570 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-07-10 20:24:43,570 INFO L138 SettingsManager]: * sizeof long double=12
[2020-07-10 20:24:43,571 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-07-10 20:24:43,571 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-07-10 20:24:43,571 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-07-10 20:24:43,574 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-07-10 20:24:43,575 INFO L138 SettingsManager]: * Size of a code block=SingleStatement
[2020-07-10 20:24:43,575 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-07-10 20:24:43,575 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-07-10 20:24:43,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-07-10 20:24:43,576 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-07-10 20:24:43,576 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation
[2020-07-10 20:24:43,576 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-07-10 20:24:43,578 INFO L138 SettingsManager]: * Use separate solver for trace checks=false
[2020-07-10 20:24:43,887 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2020-07-10 20:24:43,907 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-07-10 20:24:43,910 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-07-10 20:24:43,912 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-07-10 20:24:43,912 INFO L275 PluginConnector]: CDTParser initialized
[2020-07-10 20:24:43,913 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/ddlm2013.i
[2020-07-10 20:24:43,981 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1490f5027/1715f31d3f74408a818a312631c8c24e/FLAG489d83037
[2020-07-10 20:24:44,455 INFO L306 CDTParser]: Found 1 translation units.
[2020-07-10 20:24:44,456 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/ddlm2013.i
[2020-07-10 20:24:44,461 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1490f5027/1715f31d3f74408a818a312631c8c24e/FLAG489d83037
[2020-07-10 20:24:44,813 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1490f5027/1715f31d3f74408a818a312631c8c24e
[2020-07-10 20:24:44,823 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-07-10 20:24:44,824 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-07-10 20:24:44,826 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-07-10 20:24:44,826 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-07-10 20:24:44,830 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-07-10 20:24:44,831 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 08:24:44" (1/1) ...
[2020-07-10 20:24:44,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28f8393f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:24:44, skipping insertion in model container
[2020-07-10 20:24:44,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 08:24:44" (1/1) ...
[2020-07-10 20:24:44,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-07-10 20:24:44,864 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-07-10 20:24:45,099 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-07-10 20:24:45,106 INFO L203 MainTranslator]: Completed pre-run
[2020-07-10 20:24:45,132 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-07-10 20:24:45,145 INFO L208 MainTranslator]: Completed translation
[2020-07-10 20:24:45,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:24:45 WrapperNode
[2020-07-10 20:24:45,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-07-10 20:24:45,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-07-10 20:24:45,146 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-07-10 20:24:45,146 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-07-10 20:24:45,158 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:24:45" (1/1) ...
[2020-07-10 20:24:45,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:24:45" (1/1) ...
[2020-07-10 20:24:45,251 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:24:45" (1/1) ...
[2020-07-10 20:24:45,252 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:24:45" (1/1) ...
[2020-07-10 20:24:45,258 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:24:45" (1/1) ...
[2020-07-10 20:24:45,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:24:45" (1/1) ...
[2020-07-10 20:24:45,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:24:45" (1/1) ...
[2020-07-10 20:24:45,267 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-07-10 20:24:45,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-07-10 20:24:45,268 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-07-10 20:24:45,268 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-07-10 20:24:45,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:24:45" (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
[2020-07-10 20:24:45,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-07-10 20:24:45,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-07-10 20:24:45,345 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2020-07-10 20:24:45,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-07-10 20:24:45,345 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-07-10 20:24:45,345 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-07-10 20:24:45,345 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-07-10 20:24:45,345 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2020-07-10 20:24:45,346 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-07-10 20:24:45,346 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-07-10 20:24:45,346 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-07-10 20:24:45,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-07-10 20:24:45,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-07-10 20:24:45,705 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-07-10 20:24:45,706 INFO L295 CfgBuilder]: Removed 1 assume(true) statements.
[2020-07-10 20:24:45,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 08:24:45 BoogieIcfgContainer
[2020-07-10 20:24:45,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-07-10 20:24:45,712 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-07-10 20:24:45,712 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-07-10 20:24:45,714 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-07-10 20:24:45,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 08:24:44" (1/3) ...
[2020-07-10 20:24:45,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20355d80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 08:24:45, skipping insertion in model container
[2020-07-10 20:24:45,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:24:45" (2/3) ...
[2020-07-10 20:24:45,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20355d80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 08:24:45, skipping insertion in model container
[2020-07-10 20:24:45,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 08:24:45" (3/3) ...
[2020-07-10 20:24:45,718 INFO L109 eAbstractionObserver]: Analyzing ICFG ddlm2013.i
[2020-07-10 20:24:45,726 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-07-10 20:24:45,733 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-07-10 20:24:45,747 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-07-10 20:24:45,773 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-07-10 20:24:45,774 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-07-10 20:24:45,774 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation
[2020-07-10 20:24:45,774 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-07-10 20:24:45,774 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-07-10 20:24:45,774 INFO L380 AbstractCegarLoop]: Difference is false
[2020-07-10 20:24:45,774 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-07-10 20:24:45,775 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-07-10 20:24:45,791 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states.
[2020-07-10 20:24:45,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2020-07-10 20:24:45,802 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-10 20:24:45,804 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]
[2020-07-10 20:24:45,804 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-10 20:24:45,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-10 20:24:45,810 INFO L82 PathProgramCache]: Analyzing trace with hash 1686675663, now seen corresponding path program 1 times
[2020-07-10 20:24:45,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-10 20:24:45,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1519165051]
[2020-07-10 20:24:45,818 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-07-10 20:24:45,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-10 20:24:45,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-10 20:24:45,984 INFO L280 TraceCheckUtils]: 0: Hoare triple {47#true} assume true; {47#true} is VALID
[2020-07-10 20:24:45,985 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {47#true} {47#true} #81#return; {47#true} is VALID
[2020-07-10 20:24:45,988 INFO L263 TraceCheckUtils]: 0: Hoare triple {47#true} call ULTIMATE.init(); {47#true} is VALID
[2020-07-10 20:24:45,988 INFO L280 TraceCheckUtils]: 1: Hoare triple {47#true} assume true; {47#true} is VALID
[2020-07-10 20:24:45,989 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {47#true} {47#true} #81#return; {47#true} is VALID
[2020-07-10 20:24:45,989 INFO L263 TraceCheckUtils]: 3: Hoare triple {47#true} call #t~ret4 := main(); {47#true} is VALID
[2020-07-10 20:24:45,990 INFO L280 TraceCheckUtils]: 4: Hoare triple {47#true} havoc ~i~0; {47#true} is VALID
[2020-07-10 20:24:45,990 INFO L280 TraceCheckUtils]: 5: Hoare triple {47#true} havoc ~j~0; {47#true} is VALID
[2020-07-10 20:24:45,991 INFO L280 TraceCheckUtils]: 6: Hoare triple {47#true} havoc ~a~0; {47#true} is VALID
[2020-07-10 20:24:45,991 INFO L280 TraceCheckUtils]: 7: Hoare triple {47#true} havoc ~b~0; {47#true} is VALID
[2020-07-10 20:24:45,992 INFO L280 TraceCheckUtils]: 8: Hoare triple {47#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {47#true} is VALID
[2020-07-10 20:24:45,992 INFO L280 TraceCheckUtils]: 9: Hoare triple {47#true} ~flag~0 := #t~nondet0; {47#true} is VALID
[2020-07-10 20:24:45,993 INFO L280 TraceCheckUtils]: 10: Hoare triple {47#true} havoc #t~nondet0; {47#true} is VALID
[2020-07-10 20:24:45,993 INFO L280 TraceCheckUtils]: 11: Hoare triple {47#true} ~a~0 := 0; {47#true} is VALID
[2020-07-10 20:24:45,994 INFO L280 TraceCheckUtils]: 12: Hoare triple {47#true} ~b~0 := 0; {47#true} is VALID
[2020-07-10 20:24:45,994 INFO L280 TraceCheckUtils]: 13: Hoare triple {47#true} ~j~0 := 1; {47#true} is VALID
[2020-07-10 20:24:45,995 INFO L280 TraceCheckUtils]: 14: Hoare triple {47#true} assume 0 != ~flag~0; {47#true} is VALID
[2020-07-10 20:24:45,995 INFO L280 TraceCheckUtils]: 15: Hoare triple {47#true} ~i~0 := 0; {47#true} is VALID
[2020-07-10 20:24:45,996 INFO L280 TraceCheckUtils]: 16: Hoare triple {47#true} assume !true; {48#false} is VALID
[2020-07-10 20:24:45,997 INFO L280 TraceCheckUtils]: 17: Hoare triple {48#false} assume 0 != ~flag~0; {48#false} is VALID
[2020-07-10 20:24:45,998 INFO L263 TraceCheckUtils]: 18: Hoare triple {48#false} call __VERIFIER_assert((if ~a~0 % 4294967296 == ~b~0 % 4294967296 then 1 else 0)); {48#false} is VALID
[2020-07-10 20:24:45,998 INFO L280 TraceCheckUtils]: 19: Hoare triple {48#false} ~cond := #in~cond; {48#false} is VALID
[2020-07-10 20:24:45,999 INFO L280 TraceCheckUtils]: 20: Hoare triple {48#false} assume 0 == ~cond; {48#false} is VALID
[2020-07-10 20:24:45,999 INFO L280 TraceCheckUtils]: 21: Hoare triple {48#false} assume !false; {48#false} is VALID
[2020-07-10 20:24:46,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-07-10 20:24:46,003 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration
[2020-07-10 20:24:46,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1519165051]
[2020-07-10 20:24:46,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-10 20:24:46,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-07-10 20:24:46,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152878026]
[2020-07-10 20:24:46,016 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22
[2020-07-10 20:24:46,020 INFO L84 Accepts]: Finished accepts. word is accepted.
[2020-07-10 20:24:46,024 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states.
[2020-07-10 20:24:46,071 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity.
[2020-07-10 20:24:46,071 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states
[2020-07-10 20:24:46,071 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-07-10 20:24:46,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2020-07-10 20:24:46,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-07-10 20:24:46,085 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states.
[2020-07-10 20:24:46,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-10 20:24:46,211 INFO L93 Difference]: Finished difference Result 57 states and 64 transitions.
[2020-07-10 20:24:46,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2020-07-10 20:24:46,212 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22
[2020-07-10 20:24:46,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-10 20:24:46,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2020-07-10 20:24:46,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 64 transitions.
[2020-07-10 20:24:46,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states.
[2020-07-10 20:24:46,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 64 transitions.
[2020-07-10 20:24:46,229 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 64 transitions.
[2020-07-10 20:24:46,371 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 64 edges. 64 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity.
[2020-07-10 20:24:46,391 INFO L225 Difference]: With dead ends: 57
[2020-07-10 20:24:46,392 INFO L226 Difference]: Without dead ends: 37
[2020-07-10 20:24:46,412 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-07-10 20:24:46,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states.
[2020-07-10 20:24:46,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37.
[2020-07-10 20:24:46,494 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa
[2020-07-10 20:24:46,495 INFO L82 GeneralOperation]: Start isEquivalent. First operand 37 states. Second operand 37 states.
[2020-07-10 20:24:46,495 INFO L74 IsIncluded]: Start isIncluded. First operand 37 states. Second operand 37 states.
[2020-07-10 20:24:46,496 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 37 states.
[2020-07-10 20:24:46,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-10 20:24:46,501 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions.
[2020-07-10 20:24:46,502 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions.
[2020-07-10 20:24:46,502 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-07-10 20:24:46,503 INFO L83 IsIncluded]: Finished isIncluded. Language is included
[2020-07-10 20:24:46,503 INFO L74 IsIncluded]: Start isIncluded. First operand 37 states. Second operand 37 states.
[2020-07-10 20:24:46,503 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 37 states.
[2020-07-10 20:24:46,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-10 20:24:46,509 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions.
[2020-07-10 20:24:46,509 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions.
[2020-07-10 20:24:46,510 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-07-10 20:24:46,510 INFO L83 IsIncluded]: Finished isIncluded. Language is included
[2020-07-10 20:24:46,510 INFO L88 GeneralOperation]: Finished isEquivalent.
[2020-07-10 20:24:46,516 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa
[2020-07-10 20:24:46,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states.
[2020-07-10 20:24:46,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions.
[2020-07-10 20:24:46,524 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 22
[2020-07-10 20:24:46,525 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-07-10 20:24:46,526 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions.
[2020-07-10 20:24:46,527 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states.
[2020-07-10 20:24:46,527 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 37 states and 39 transitions.
[2020-07-10 20:24:46,611 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 39 edges. 39 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity.
[2020-07-10 20:24:46,612 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions.
[2020-07-10 20:24:46,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2020-07-10 20:24:46,614 INFO L414 BasicCegarLoop]: Found error trace
[2020-07-10 20:24:46,614 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]
[2020-07-10 20:24:46,615 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-07-10 20:24:46,615 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-10 20:24:46,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-07-10 20:24:46,616 INFO L82 PathProgramCache]: Analyzing trace with hash 779060326, now seen corresponding path program 1 times
[2020-07-10 20:24:46,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-07-10 20:24:46,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1893765100]
[2020-07-10 20:24:46,617 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-07-10 20:24:46,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-10 20:24:46,735 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-07-10 20:24:46,736 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception:
java.lang.AssertionError
at de.uni_freiburg.informatik.ultimate.smtinterpol.proof.FixResolutionProof.fix(FixResolutionProof.java:191)
at de.uni_freiburg.informatik.ultimate.smtinterpol.proof.ProofTermGenerator.convert(ProofTermGenerator.java:150)
at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getProof(SMTInterpol.java:797)
at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:391)
at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:385)
at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:332)
at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:332)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.<init>(NestedInterpolantsBuilder.java:166)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:337)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:239)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.<init>(InterpolatingTraceCheckCraig.java:108)
at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.Interpolator.generateInterpolantsCraigNested(Interpolator.java:146)
at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.Interpolator.generateInterpolants(Interpolator.java:102)
at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.acceleratedInterpolationCore(AcceleratedInterpolation.java:266)
at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.<init>(AcceleratedInterpolation.java:184)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:144)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.<init>(AutomatonFreeRefinementEngine.java:85)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.<init>(TraceAbstractionRefinementEngine.java:75)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370)
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:334)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:127)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120)
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:317)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
[2020-07-10 20:24:46,752 INFO L168 Benchmark]: Toolchain (without parser) took 1927.02 ms. Allocated memory was 147.3 MB in the beginning and 232.3 MB in the end (delta: 84.9 MB). Free memory was 104.3 MB in the beginning and 203.4 MB in the end (delta: -99.0 MB). Peak memory consumption was 72.9 MB. Max. memory is 7.1 GB.
[2020-07-10 20:24:46,753 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 147.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-07-10 20:24:46,754 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.97 ms. Allocated memory is still 147.3 MB. Free memory was 104.1 MB in the beginning and 94.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB.
[2020-07-10 20:24:46,756 INFO L168 Benchmark]: Boogie Preprocessor took 121.87 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 94.3 MB in the beginning and 182.3 MB in the end (delta: -88.0 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB.
[2020-07-10 20:24:46,757 INFO L168 Benchmark]: RCFGBuilder took 442.57 ms. Allocated memory is still 204.5 MB. Free memory was 182.3 MB in the beginning and 161.6 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB.
[2020-07-10 20:24:46,758 INFO L168 Benchmark]: TraceAbstraction took 1037.37 ms. Allocated memory was 204.5 MB in the beginning and 232.3 MB in the end (delta: 27.8 MB). Free memory was 161.6 MB in the beginning and 203.4 MB in the end (delta: -41.8 MB). Peak memory consumption was 72.9 MB. Max. memory is 7.1 GB.
[2020-07-10 20:24:46,762 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- AssertionsEnabledResult: Assertions are enabled
Assertions are enabled
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.18 ms. Allocated memory is still 147.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 319.97 ms. Allocated memory is still 147.3 MB. Free memory was 104.1 MB in the beginning and 94.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 121.87 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 94.3 MB in the beginning and 182.3 MB in the end (delta: -88.0 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 442.57 ms. Allocated memory is still 204.5 MB. Free memory was 182.3 MB in the beginning and 161.6 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 1037.37 ms. Allocated memory was 204.5 MB in the beginning and 232.3 MB in the end (delta: 27.8 MB). Free memory was 161.6 MB in the beginning and 203.4 MB in the end (delta: -41.8 MB). Peak memory consumption was 72.9 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- ExceptionOrErrorResult: AssertionError: null
de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.proof.FixResolutionProof.fix(FixResolutionProof.java:191)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
Received shutdown request...