/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/condmf.c


--------------------------------------------------------------------------------


This is Ultimate 0.1.25-8fc6572
[2020-07-10 15:26:05,437 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-07-10 15:26:05,440 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-07-10 15:26:05,460 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
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[2020-07-10 15:26:05,496 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-07-10 15:26:05,497 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
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[2020-07-10 15:26:05,532 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-07-10 15:26:05,564 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-07-10 15:26:05,565 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-07-10 15:26:05,568 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-07-10 15:26:05,569 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-07-10 15:26:05,569 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-07-10 15:26:05,569 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-07-10 15:26:05,569 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-07-10 15:26:05,569 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-07-10 15:26:05,570 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-07-10 15:26:05,570 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-07-10 15:26:05,570 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-07-10 15:26:05,570 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-07-10 15:26:05,570 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-07-10 15:26:05,571 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-07-10 15:26:05,571 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-07-10 15:26:05,571 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-07-10 15:26:05,571 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-07-10 15:26:05,571 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-07-10 15:26:05,572 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-07-10 15:26:05,572 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-07-10 15:26:05,572 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-07-10 15:26:05,574 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-07-10 15:26:05,574 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-07-10 15:26:05,574 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-07-10 15:26:05,574 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-07-10 15:26:05,575 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-07-10 15:26:05,575 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-10 15:26:05,575 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-07-10 15:26:05,575 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-07-10 15:26:05,575 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2020-07-10 15:26:05,887 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2020-07-10 15:26:05,903 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-07-10 15:26:05,907 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-07-10 15:26:05,909 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-07-10 15:26:05,909 INFO  L275        PluginConnector]: CDTParser initialized
[2020-07-10 15:26:05,910 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/condmf.c
[2020-07-10 15:26:05,987 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af40235d6/0fd9ad32ba064eb0bcf41a033805a814/FLAG2d7593f0a
[2020-07-10 15:26:06,460 INFO  L306              CDTParser]: Found 1 translation units.
[2020-07-10 15:26:06,461 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/condmf.c
[2020-07-10 15:26:06,468 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af40235d6/0fd9ad32ba064eb0bcf41a033805a814/FLAG2d7593f0a
[2020-07-10 15:26:06,804 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af40235d6/0fd9ad32ba064eb0bcf41a033805a814
[2020-07-10 15:26:06,813 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-07-10 15:26:06,815 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-07-10 15:26:06,816 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-07-10 15:26:06,816 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-07-10 15:26:06,820 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-07-10 15:26:06,822 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:26:06" (1/1) ...
[2020-07-10 15:26:06,825 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@544e6df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:06, skipping insertion in model container
[2020-07-10 15:26:06,825 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:26:06" (1/1) ...
[2020-07-10 15:26:06,833 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-07-10 15:26:06,858 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-07-10 15:26:07,041 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-07-10 15:26:07,052 INFO  L203         MainTranslator]: Completed pre-run
[2020-07-10 15:26:07,075 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-07-10 15:26:07,093 INFO  L208         MainTranslator]: Completed translation
[2020-07-10 15:26:07,093 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:07 WrapperNode
[2020-07-10 15:26:07,094 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-07-10 15:26:07,094 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-07-10 15:26:07,094 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-07-10 15:26:07,095 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-07-10 15:26:07,193 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:07" (1/1) ...
[2020-07-10 15:26:07,194 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:07" (1/1) ...
[2020-07-10 15:26:07,202 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:07" (1/1) ...
[2020-07-10 15:26:07,203 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:07" (1/1) ...
[2020-07-10 15:26:07,213 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:07" (1/1) ...
[2020-07-10 15:26:07,219 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:07" (1/1) ...
[2020-07-10 15:26:07,221 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:07" (1/1) ...
[2020-07-10 15:26:07,223 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-07-10 15:26:07,224 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-07-10 15:26:07,224 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-07-10 15:26:07,224 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-07-10 15:26:07,225 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:07" (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 15:26:07,286 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-07-10 15:26:07,286 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-07-10 15:26:07,286 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2020-07-10 15:26:07,287 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-07-10 15:26:07,287 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-07-10 15:26:07,287 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-07-10 15:26:07,287 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2020-07-10 15:26:07,287 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2020-07-10 15:26:07,287 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-07-10 15:26:07,288 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-07-10 15:26:07,288 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-07-10 15:26:07,288 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-07-10 15:26:07,288 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-07-10 15:26:07,288 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-07-10 15:26:07,288 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-07-10 15:26:07,289 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-07-10 15:26:07,289 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-07-10 15:26:07,289 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-07-10 15:26:07,751 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-07-10 15:26:07,752 INFO  L295             CfgBuilder]: Removed 3 assume(true) statements.
[2020-07-10 15:26:07,759 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:26:07 BoogieIcfgContainer
[2020-07-10 15:26:07,760 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-07-10 15:26:07,761 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-07-10 15:26:07,761 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-07-10 15:26:07,766 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-07-10 15:26:07,767 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 03:26:06" (1/3) ...
[2020-07-10 15:26:07,768 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3de48399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:26:07, skipping insertion in model container
[2020-07-10 15:26:07,768 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:26:07" (2/3) ...
[2020-07-10 15:26:07,771 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3de48399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:26:07, skipping insertion in model container
[2020-07-10 15:26:07,771 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:26:07" (3/3) ...
[2020-07-10 15:26:07,774 INFO  L109   eAbstractionObserver]: Analyzing ICFG condmf.c
[2020-07-10 15:26:07,785 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2020-07-10 15:26:07,794 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-07-10 15:26:07,807 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-07-10 15:26:07,831 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-07-10 15:26:07,831 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-07-10 15:26:07,831 INFO  L377      AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-07-10 15:26:07,831 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-07-10 15:26:07,831 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-07-10 15:26:07,831 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-07-10 15:26:07,831 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-07-10 15:26:07,832 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-07-10 15:26:07,848 INFO  L276                IsEmpty]: Start isEmpty. Operand 35 states.
[2020-07-10 15:26:07,855 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2020-07-10 15:26:07,855 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-10 15:26:07,856 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 15:26:07,857 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-10 15:26:07,863 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-10 15:26:07,864 INFO  L82        PathProgramCache]: Analyzing trace with hash -1524373234, now seen corresponding path program 1 times
[2020-07-10 15:26:07,875 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-07-10 15:26:07,875 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640830264]
[2020-07-10 15:26:07,876 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-07-10 15:26:07,989 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-10 15:26:08,088 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-10 15:26:08,109 INFO  L280        TraceCheckUtils]: 0: Hoare triple {47#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; {38#true} is VALID
[2020-07-10 15:26:08,110 INFO  L280        TraceCheckUtils]: 1: Hoare triple {38#true} assume true; {38#true} is VALID
[2020-07-10 15:26:08,110 INFO  L275        TraceCheckUtils]: 2: Hoare quadruple {38#true} {38#true} #86#return; {38#true} is VALID
[2020-07-10 15:26:08,114 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-10 15:26:08,123 INFO  L280        TraceCheckUtils]: 0: Hoare triple {38#true} ~cond := #in~cond; {38#true} is VALID
[2020-07-10 15:26:08,125 INFO  L280        TraceCheckUtils]: 1: Hoare triple {38#true} assume 0 == ~cond;assume false; {39#false} is VALID
[2020-07-10 15:26:08,125 INFO  L280        TraceCheckUtils]: 2: Hoare triple {39#false} assume true; {39#false} is VALID
[2020-07-10 15:26:08,126 INFO  L275        TraceCheckUtils]: 3: Hoare quadruple {39#false} {38#true} #82#return; {39#false} is VALID
[2020-07-10 15:26:08,128 INFO  L263        TraceCheckUtils]: 0: Hoare triple {38#true} call ULTIMATE.init(); {47#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID
[2020-07-10 15:26:08,129 INFO  L280        TraceCheckUtils]: 1: Hoare triple {47#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; {38#true} is VALID
[2020-07-10 15:26:08,129 INFO  L280        TraceCheckUtils]: 2: Hoare triple {38#true} assume true; {38#true} is VALID
[2020-07-10 15:26:08,130 INFO  L275        TraceCheckUtils]: 3: Hoare quadruple {38#true} {38#true} #86#return; {38#true} is VALID
[2020-07-10 15:26:08,130 INFO  L263        TraceCheckUtils]: 4: Hoare triple {38#true} call #t~ret8 := main(); {38#true} is VALID
[2020-07-10 15:26:08,130 INFO  L280        TraceCheckUtils]: 5: Hoare triple {38#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~N~0 := #t~nondet0;havoc #t~nondet0; {38#true} is VALID
[2020-07-10 15:26:08,131 INFO  L280        TraceCheckUtils]: 6: Hoare triple {38#true} assume !(~N~0 <= 0); {38#true} is VALID
[2020-07-10 15:26:08,131 INFO  L263        TraceCheckUtils]: 7: Hoare triple {38#true} call assume_abort_if_not((if ~N~0 <= 536870911 then 1 else 0)); {38#true} is VALID
[2020-07-10 15:26:08,132 INFO  L280        TraceCheckUtils]: 8: Hoare triple {38#true} ~cond := #in~cond; {38#true} is VALID
[2020-07-10 15:26:08,133 INFO  L280        TraceCheckUtils]: 9: Hoare triple {38#true} assume 0 == ~cond;assume false; {39#false} is VALID
[2020-07-10 15:26:08,133 INFO  L280        TraceCheckUtils]: 10: Hoare triple {39#false} assume true; {39#false} is VALID
[2020-07-10 15:26:08,134 INFO  L275        TraceCheckUtils]: 11: Hoare quadruple {39#false} {38#true} #82#return; {39#false} is VALID
[2020-07-10 15:26:08,134 INFO  L280        TraceCheckUtils]: 12: Hoare triple {39#false} havoc ~i~0;call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4 * ~N~0);~a~0.base, ~a~0.offset := #t~malloc1.base, #t~malloc1.offset;~i~0 := 0; {39#false} is VALID
[2020-07-10 15:26:08,135 INFO  L280        TraceCheckUtils]: 13: Hoare triple {39#false} assume !(~i~0 < ~N~0); {39#false} is VALID
[2020-07-10 15:26:08,135 INFO  L280        TraceCheckUtils]: 14: Hoare triple {39#false} ~i~0 := 0; {39#false} is VALID
[2020-07-10 15:26:08,136 INFO  L280        TraceCheckUtils]: 15: Hoare triple {39#false} assume !(~i~0 < ~N~0); {39#false} is VALID
[2020-07-10 15:26:08,136 INFO  L280        TraceCheckUtils]: 16: Hoare triple {39#false} ~i~0 := 0; {39#false} is VALID
[2020-07-10 15:26:08,137 INFO  L280        TraceCheckUtils]: 17: Hoare triple {39#false} assume !!(~i~0 < ~N~0);call #t~mem7 := read~int(~a~0.base, ~a~0.offset + 4 * ~i~0, 4); {39#false} is VALID
[2020-07-10 15:26:08,137 INFO  L263        TraceCheckUtils]: 18: Hoare triple {39#false} call __VERIFIER_assert((if (if #t~mem7 < 0 && 0 != #t~mem7 % 2 then #t~mem7 % 2 - 2 else #t~mem7 % 2) == (if ~N~0 < 0 && 0 != ~N~0 % 2 then ~N~0 % 2 - 2 else ~N~0 % 2) then 1 else 0)); {39#false} is VALID
[2020-07-10 15:26:08,138 INFO  L280        TraceCheckUtils]: 19: Hoare triple {39#false} ~cond := #in~cond; {39#false} is VALID
[2020-07-10 15:26:08,138 INFO  L280        TraceCheckUtils]: 20: Hoare triple {39#false} assume 0 == ~cond; {39#false} is VALID
[2020-07-10 15:26:08,138 INFO  L280        TraceCheckUtils]: 21: Hoare triple {39#false} assume !false; {39#false} is VALID
[2020-07-10 15:26:08,142 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 15:26:08,143 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640830264]
[2020-07-10 15:26:08,144 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-10 15:26:08,144 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-07-10 15:26:08,145 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162002188]
[2020-07-10 15:26:08,153 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 22
[2020-07-10 15:26:08,156 INFO  L84                 Accepts]: Finished accepts. word is accepted.
[2020-07-10 15:26:08,161 INFO  L86        InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states.
[2020-07-10 15:26:08,208 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 15:26:08,208 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-07-10 15:26:08,208 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-07-10 15:26:08,218 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-07-10 15:26:08,219 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-10 15:26:08,221 INFO  L87              Difference]: Start difference. First operand 35 states. Second operand 3 states.
[2020-07-10 15:26:08,448 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-10 15:26:08,448 INFO  L93              Difference]: Finished difference Result 60 states and 77 transitions.
[2020-07-10 15:26:08,449 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-07-10 15:26:08,449 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 22
[2020-07-10 15:26:08,449 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-10 15:26:08,451 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2020-07-10 15:26:08,462 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions.
[2020-07-10 15:26:08,463 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2020-07-10 15:26:08,468 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions.
[2020-07-10 15:26:08,468 INFO  L86        InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 77 transitions.
[2020-07-10 15:26:08,615 INFO  L119       InductivityCheck]: Floyd-Hoare automaton has 77 edges. 77 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 
[2020-07-10 15:26:08,629 INFO  L225             Difference]: With dead ends: 60
[2020-07-10 15:26:08,630 INFO  L226             Difference]: Without dead ends: 30
[2020-07-10 15:26:08,634 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-07-10 15:26:08,655 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 30 states.
[2020-07-10 15:26:08,691 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30.
[2020-07-10 15:26:08,692 INFO  L214    AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa
[2020-07-10 15:26:08,692 INFO  L82        GeneralOperation]: Start isEquivalent. First operand 30 states. Second operand 30 states.
[2020-07-10 15:26:08,693 INFO  L74              IsIncluded]: Start isIncluded. First operand 30 states. Second operand 30 states.
[2020-07-10 15:26:08,693 INFO  L87              Difference]: Start difference. First operand 30 states. Second operand 30 states.
[2020-07-10 15:26:08,697 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-10 15:26:08,698 INFO  L93              Difference]: Finished difference Result 30 states and 33 transitions.
[2020-07-10 15:26:08,698 INFO  L276                IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions.
[2020-07-10 15:26:08,698 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2020-07-10 15:26:08,699 INFO  L83              IsIncluded]: Finished isIncluded. Language is included
[2020-07-10 15:26:08,699 INFO  L74              IsIncluded]: Start isIncluded. First operand 30 states. Second operand 30 states.
[2020-07-10 15:26:08,699 INFO  L87              Difference]: Start difference. First operand 30 states. Second operand 30 states.
[2020-07-10 15:26:08,703 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-10 15:26:08,703 INFO  L93              Difference]: Finished difference Result 30 states and 33 transitions.
[2020-07-10 15:26:08,703 INFO  L276                IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions.
[2020-07-10 15:26:08,704 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2020-07-10 15:26:08,704 INFO  L83              IsIncluded]: Finished isIncluded. Language is included
[2020-07-10 15:26:08,704 INFO  L88        GeneralOperation]: Finished isEquivalent.
[2020-07-10 15:26:08,705 INFO  L221    AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa
[2020-07-10 15:26:08,705 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 30 states.
[2020-07-10 15:26:08,707 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions.
[2020-07-10 15:26:08,709 INFO  L78                 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 22
[2020-07-10 15:26:08,710 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-10 15:26:08,710 INFO  L479      AbstractCegarLoop]: Abstraction has 30 states and 33 transitions.
[2020-07-10 15:26:08,710 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-07-10 15:26:08,710 INFO  L276                IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions.
[2020-07-10 15:26:08,711 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2020-07-10 15:26:08,711 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-10 15:26:08,712 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 15:26:08,712 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-07-10 15:26:08,712 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-10 15:26:08,713 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-10 15:26:08,713 INFO  L82        PathProgramCache]: Analyzing trace with hash -2111179248, now seen corresponding path program 1 times
[2020-07-10 15:26:08,713 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-07-10 15:26:08,713 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024849391]
[2020-07-10 15:26:08,714 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-07-10 15:26:08,747 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-10 15:26:08,830 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-10 15:26:08,837 INFO  L280        TraceCheckUtils]: 0: Hoare triple {238#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; {227#true} is VALID
[2020-07-10 15:26:08,838 INFO  L280        TraceCheckUtils]: 1: Hoare triple {227#true} assume true; {227#true} is VALID
[2020-07-10 15:26:08,838 INFO  L275        TraceCheckUtils]: 2: Hoare quadruple {227#true} {227#true} #86#return; {227#true} is VALID
[2020-07-10 15:26:08,842 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-07-10 15:26:08,848 INFO  L280        TraceCheckUtils]: 0: Hoare triple {227#true} ~cond := #in~cond; {227#true} is VALID
[2020-07-10 15:26:08,849 INFO  L280        TraceCheckUtils]: 1: Hoare triple {227#true} assume !(0 == ~cond); {227#true} is VALID
[2020-07-10 15:26:08,849 INFO  L280        TraceCheckUtils]: 2: Hoare triple {227#true} assume true; {227#true} is VALID
[2020-07-10 15:26:08,851 INFO  L275        TraceCheckUtils]: 3: Hoare quadruple {227#true} {232#(<= 1 ~N~0)} #82#return; {232#(<= 1 ~N~0)} is VALID
[2020-07-10 15:26:08,852 INFO  L263        TraceCheckUtils]: 0: Hoare triple {227#true} call ULTIMATE.init(); {238#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} is VALID
[2020-07-10 15:26:08,852 INFO  L280        TraceCheckUtils]: 1: Hoare triple {238#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~N~0 |old(~N~0)|) (= |#NULL.offset| |old(#NULL.offset)|))} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~N~0 := 0; {227#true} is VALID
[2020-07-10 15:26:08,853 INFO  L280        TraceCheckUtils]: 2: Hoare triple {227#true} assume true; {227#true} is VALID
[2020-07-10 15:26:08,853 INFO  L275        TraceCheckUtils]: 3: Hoare quadruple {227#true} {227#true} #86#return; {227#true} is VALID
[2020-07-10 15:26:08,853 INFO  L263        TraceCheckUtils]: 4: Hoare triple {227#true} call #t~ret8 := main(); {227#true} is VALID
[2020-07-10 15:26:08,854 INFO  L280        TraceCheckUtils]: 5: Hoare triple {227#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~N~0 := #t~nondet0;havoc #t~nondet0; {227#true} is VALID
[2020-07-10 15:26:08,855 INFO  L280        TraceCheckUtils]: 6: Hoare triple {227#true} assume !(~N~0 <= 0); {232#(<= 1 ~N~0)} is VALID
[2020-07-10 15:26:08,855 INFO  L263        TraceCheckUtils]: 7: Hoare triple {232#(<= 1 ~N~0)} call assume_abort_if_not((if ~N~0 <= 536870911 then 1 else 0)); {227#true} is VALID
[2020-07-10 15:26:08,856 INFO  L280        TraceCheckUtils]: 8: Hoare triple {227#true} ~cond := #in~cond; {227#true} is VALID
[2020-07-10 15:26:08,856 INFO  L280        TraceCheckUtils]: 9: Hoare triple {227#true} assume !(0 == ~cond); {227#true} is VALID
[2020-07-10 15:26:08,856 INFO  L280        TraceCheckUtils]: 10: Hoare triple {227#true} assume true; {227#true} is VALID
[2020-07-10 15:26:08,858 INFO  L275        TraceCheckUtils]: 11: Hoare quadruple {227#true} {232#(<= 1 ~N~0)} #82#return; {232#(<= 1 ~N~0)} is VALID
[2020-07-10 15:26:08,859 INFO  L280        TraceCheckUtils]: 12: Hoare triple {232#(<= 1 ~N~0)} havoc ~i~0;call #t~malloc1.base, #t~malloc1.offset := #Ultimate.allocOnHeap(4 * ~N~0);~a~0.base, ~a~0.offset := #t~malloc1.base, #t~malloc1.offset;~i~0 := 0; {237#(and (= 0 main_~i~0) (<= 1 ~N~0))} is VALID
[2020-07-10 15:26:08,861 INFO  L280        TraceCheckUtils]: 13: Hoare triple {237#(and (= 0 main_~i~0) (<= 1 ~N~0))} assume !(~i~0 < ~N~0); {228#false} is VALID
[2020-07-10 15:26:08,861 INFO  L280        TraceCheckUtils]: 14: Hoare triple {228#false} ~i~0 := 0; {228#false} is VALID
[2020-07-10 15:26:08,861 INFO  L280        TraceCheckUtils]: 15: Hoare triple {228#false} assume !(~i~0 < ~N~0); {228#false} is VALID
[2020-07-10 15:26:08,862 INFO  L280        TraceCheckUtils]: 16: Hoare triple {228#false} ~i~0 := 0; {228#false} is VALID
[2020-07-10 15:26:08,862 INFO  L280        TraceCheckUtils]: 17: Hoare triple {228#false} assume !!(~i~0 < ~N~0);call #t~mem7 := read~int(~a~0.base, ~a~0.offset + 4 * ~i~0, 4); {228#false} is VALID
[2020-07-10 15:26:08,862 INFO  L263        TraceCheckUtils]: 18: Hoare triple {228#false} call __VERIFIER_assert((if (if #t~mem7 < 0 && 0 != #t~mem7 % 2 then #t~mem7 % 2 - 2 else #t~mem7 % 2) == (if ~N~0 < 0 && 0 != ~N~0 % 2 then ~N~0 % 2 - 2 else ~N~0 % 2) then 1 else 0)); {228#false} is VALID
[2020-07-10 15:26:08,863 INFO  L280        TraceCheckUtils]: 19: Hoare triple {228#false} ~cond := #in~cond; {228#false} is VALID
[2020-07-10 15:26:08,863 INFO  L280        TraceCheckUtils]: 20: Hoare triple {228#false} assume 0 == ~cond; {228#false} is VALID
[2020-07-10 15:26:08,863 INFO  L280        TraceCheckUtils]: 21: Hoare triple {228#false} assume !false; {228#false} is VALID
[2020-07-10 15:26:08,864 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 15:26:08,865 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024849391]
[2020-07-10 15:26:08,865 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-07-10 15:26:08,865 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-07-10 15:26:08,866 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167542478]
[2020-07-10 15:26:08,870 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 22
[2020-07-10 15:26:08,870 INFO  L84                 Accepts]: Finished accepts. word is accepted.
[2020-07-10 15:26:08,870 INFO  L86        InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states.
[2020-07-10 15:26:08,906 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 15:26:08,906 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-07-10 15:26:08,907 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-07-10 15:26:08,907 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-07-10 15:26:08,907 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-07-10 15:26:08,908 INFO  L87              Difference]: Start difference. First operand 30 states and 33 transitions. Second operand 5 states.
[2020-07-10 15:26:09,259 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-10 15:26:09,259 INFO  L93              Difference]: Finished difference Result 54 states and 63 transitions.
[2020-07-10 15:26:09,259 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2020-07-10 15:26:09,260 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 22
[2020-07-10 15:26:09,260 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-07-10 15:26:09,260 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2020-07-10 15:26:09,264 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 63 transitions.
[2020-07-10 15:26:09,264 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2020-07-10 15:26:09,268 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 63 transitions.
[2020-07-10 15:26:09,268 INFO  L86        InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 63 transitions.
[2020-07-10 15:26:09,367 INFO  L119       InductivityCheck]: Floyd-Hoare automaton has 63 edges. 63 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 
[2020-07-10 15:26:09,370 INFO  L225             Difference]: With dead ends: 54
[2020-07-10 15:26:09,370 INFO  L226             Difference]: Without dead ends: 39
[2020-07-10 15:26:09,371 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2020-07-10 15:26:09,372 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 39 states.
[2020-07-10 15:26:09,403 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 32.
[2020-07-10 15:26:09,403 INFO  L214    AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa
[2020-07-10 15:26:09,403 INFO  L82        GeneralOperation]: Start isEquivalent. First operand 39 states. Second operand 32 states.
[2020-07-10 15:26:09,404 INFO  L74              IsIncluded]: Start isIncluded. First operand 39 states. Second operand 32 states.
[2020-07-10 15:26:09,404 INFO  L87              Difference]: Start difference. First operand 39 states. Second operand 32 states.
[2020-07-10 15:26:09,409 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-10 15:26:09,409 INFO  L93              Difference]: Finished difference Result 39 states and 44 transitions.
[2020-07-10 15:26:09,409 INFO  L276                IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions.
[2020-07-10 15:26:09,410 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2020-07-10 15:26:09,410 INFO  L83              IsIncluded]: Finished isIncluded. Language is included
[2020-07-10 15:26:09,411 INFO  L74              IsIncluded]: Start isIncluded. First operand 32 states. Second operand 39 states.
[2020-07-10 15:26:09,411 INFO  L87              Difference]: Start difference. First operand 32 states. Second operand 39 states.
[2020-07-10 15:26:09,414 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-07-10 15:26:09,415 INFO  L93              Difference]: Finished difference Result 39 states and 44 transitions.
[2020-07-10 15:26:09,415 INFO  L276                IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions.
[2020-07-10 15:26:09,416 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2020-07-10 15:26:09,417 INFO  L83              IsIncluded]: Finished isIncluded. Language is included
[2020-07-10 15:26:09,417 INFO  L88        GeneralOperation]: Finished isEquivalent.
[2020-07-10 15:26:09,417 INFO  L221    AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa
[2020-07-10 15:26:09,417 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 32 states.
[2020-07-10 15:26:09,419 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions.
[2020-07-10 15:26:09,420 INFO  L78                 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 22
[2020-07-10 15:26:09,420 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-07-10 15:26:09,420 INFO  L479      AbstractCegarLoop]: Abstraction has 32 states and 35 transitions.
[2020-07-10 15:26:09,420 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-07-10 15:26:09,421 INFO  L276                IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions.
[2020-07-10 15:26:09,422 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2020-07-10 15:26:09,422 INFO  L414         BasicCegarLoop]: Found error trace
[2020-07-10 15:26:09,422 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]
[2020-07-10 15:26:09,423 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-07-10 15:26:09,423 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-07-10 15:26:09,423 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-07-10 15:26:09,423 INFO  L82        PathProgramCache]: Analyzing trace with hash 373909448, now seen corresponding path program 1 times
[2020-07-10 15:26:09,424 INFO  L163   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-07-10 15:26:09,424 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661922372]
[2020-07-10 15:26:09,425 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-07-10 15:26:09,484 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-07-10 15:26:09,545 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-07-10 15:26:09,577 INFO  L174   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2020-07-10 15:26:09,578 INFO  L520         BasicCegarLoop]: Counterexample might be feasible
[2020-07-10 15:26:09,578 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-07-10 15:26:09,630 WARN  L170   areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation
[2020-07-10 15:26:09,630 WARN  L170   areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation
[2020-07-10 15:26:09,630 WARN  L170   areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation
[2020-07-10 15:26:09,630 WARN  L170   areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation
[2020-07-10 15:26:09,631 WARN  L170   areAnnotationChecker]: mainENTRY has no Hoare annotation
[2020-07-10 15:26:09,631 WARN  L170   areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation
[2020-07-10 15:26:09,631 WARN  L170   areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation
[2020-07-10 15:26:09,631 WARN  L170   areAnnotationChecker]: L-1 has no Hoare annotation
[2020-07-10 15:26:09,631 WARN  L170   areAnnotationChecker]: L-1 has no Hoare annotation
[2020-07-10 15:26:09,631 WARN  L170   areAnnotationChecker]: L11 has no Hoare annotation
[2020-07-10 15:26:09,632 WARN  L170   areAnnotationChecker]: L11 has no Hoare annotation
[2020-07-10 15:26:09,632 WARN  L170   areAnnotationChecker]: L22 has no Hoare annotation
[2020-07-10 15:26:09,632 WARN  L170   areAnnotationChecker]: L22 has no Hoare annotation
[2020-07-10 15:26:09,632 WARN  L170   areAnnotationChecker]: L13 has no Hoare annotation
[2020-07-10 15:26:09,633 WARN  L170   areAnnotationChecker]: L13 has no Hoare annotation
[2020-07-10 15:26:09,634 WARN  L170   areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation
[2020-07-10 15:26:09,635 WARN  L170   areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation
[2020-07-10 15:26:09,635 WARN  L170   areAnnotationChecker]: L11-2 has no Hoare annotation
[2020-07-10 15:26:09,635 WARN  L170   areAnnotationChecker]: mainFINAL has no Hoare annotation
[2020-07-10 15:26:09,635 WARN  L170   areAnnotationChecker]: L23 has no Hoare annotation
[2020-07-10 15:26:09,635 WARN  L170   areAnnotationChecker]: L23 has no Hoare annotation
[2020-07-10 15:26:09,636 WARN  L170   areAnnotationChecker]: L13-1 has no Hoare annotation
[2020-07-10 15:26:09,636 WARN  L170   areAnnotationChecker]: L13-1 has no Hoare annotation
[2020-07-10 15:26:09,636 WARN  L170   areAnnotationChecker]: L13-3 has no Hoare annotation
[2020-07-10 15:26:09,636 WARN  L170   areAnnotationChecker]: assume_abort_if_notEXIT has no Hoare annotation
[2020-07-10 15:26:09,636 WARN  L170   areAnnotationChecker]: mainEXIT has no Hoare annotation
[2020-07-10 15:26:09,636 WARN  L170   areAnnotationChecker]: L23-1 has no Hoare annotation
[2020-07-10 15:26:09,637 WARN  L170   areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation
[2020-07-10 15:26:09,637 WARN  L170   areAnnotationChecker]: L28-3 has no Hoare annotation
[2020-07-10 15:26:09,637 WARN  L170   areAnnotationChecker]: L28-3 has no Hoare annotation
[2020-07-10 15:26:09,637 WARN  L170   areAnnotationChecker]: L28-3 has no Hoare annotation
[2020-07-10 15:26:09,642 WARN  L170   areAnnotationChecker]: L47-1 has no Hoare annotation
[2020-07-10 15:26:09,642 WARN  L170   areAnnotationChecker]: L28-4 has no Hoare annotation
[2020-07-10 15:26:09,643 WARN  L170   areAnnotationChecker]: L28-2 has no Hoare annotation
[2020-07-10 15:26:09,643 WARN  L170   areAnnotationChecker]: L45-2 has no Hoare annotation
[2020-07-10 15:26:09,643 WARN  L170   areAnnotationChecker]: L33-3 has no Hoare annotation
[2020-07-10 15:26:09,643 WARN  L170   areAnnotationChecker]: L33-3 has no Hoare annotation
[2020-07-10 15:26:09,643 WARN  L170   areAnnotationChecker]: L33-3 has no Hoare annotation
[2020-07-10 15:26:09,643 WARN  L170   areAnnotationChecker]: L45-3 has no Hoare annotation
[2020-07-10 15:26:09,644 WARN  L170   areAnnotationChecker]: L45-3 has no Hoare annotation
[2020-07-10 15:26:09,644 WARN  L170   areAnnotationChecker]: L45-3 has no Hoare annotation
[2020-07-10 15:26:09,644 WARN  L170   areAnnotationChecker]: L33-4 has no Hoare annotation
[2020-07-10 15:26:09,644 WARN  L170   areAnnotationChecker]: L35 has no Hoare annotation
[2020-07-10 15:26:09,644 WARN  L170   areAnnotationChecker]: L35 has no Hoare annotation
[2020-07-10 15:26:09,644 WARN  L170   areAnnotationChecker]: L45-4 has no Hoare annotation
[2020-07-10 15:26:09,645 WARN  L170   areAnnotationChecker]: L47 has no Hoare annotation
[2020-07-10 15:26:09,645 WARN  L170   areAnnotationChecker]: L47 has no Hoare annotation
[2020-07-10 15:26:09,645 WARN  L170   areAnnotationChecker]: L33-2 has no Hoare annotation
[2020-07-10 15:26:09,645 INFO  L163   areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing.
[2020-07-10 15:26:09,650 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 03:26:09 BoogieIcfgContainer
[2020-07-10 15:26:09,650 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-07-10 15:26:09,655 INFO  L168              Benchmark]: Toolchain (without parser) took 2838.50 ms. Allocated memory was 144.7 MB in the beginning and 233.3 MB in the end (delta: 88.6 MB). Free memory was 104.5 MB in the beginning and 96.5 MB in the end (delta: 8.1 MB). Peak memory consumption was 96.7 MB. Max. memory is 7.1 GB.
[2020-07-10 15:26:09,658 INFO  L168              Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 144.7 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB.
[2020-07-10 15:26:09,659 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 278.19 ms. Allocated memory is still 144.7 MB. Free memory was 104.3 MB in the beginning and 93.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB.
[2020-07-10 15:26:09,660 INFO  L168              Benchmark]: Boogie Preprocessor took 128.92 ms. Allocated memory was 144.7 MB in the beginning and 203.9 MB in the end (delta: 59.2 MB). Free memory was 93.4 MB in the beginning and 181.6 MB in the end (delta: -88.2 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB.
[2020-07-10 15:26:09,662 INFO  L168              Benchmark]: RCFGBuilder took 536.19 ms. Allocated memory is still 203.9 MB. Free memory was 181.6 MB in the beginning and 156.5 MB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB.
[2020-07-10 15:26:09,665 INFO  L168              Benchmark]: TraceAbstraction took 1889.55 ms. Allocated memory was 203.9 MB in the beginning and 233.3 MB in the end (delta: 29.4 MB). Free memory was 155.8 MB in the beginning and 96.5 MB in the end (delta: 59.4 MB). Peak memory consumption was 88.7 MB. Max. memory is 7.1 GB.
[2020-07-10 15:26:09,673 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 0.60 ms. Allocated memory is still 144.7 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 278.19 ms. Allocated memory is still 144.7 MB. Free memory was 104.3 MB in the beginning and 93.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 128.92 ms. Allocated memory was 144.7 MB in the beginning and 203.9 MB in the end (delta: 59.2 MB). Free memory was 93.4 MB in the beginning and 181.6 MB in the end (delta: -88.2 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 536.19 ms. Allocated memory is still 203.9 MB. Free memory was 181.6 MB in the beginning and 156.5 MB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 1889.55 ms. Allocated memory was 203.9 MB in the beginning and 233.3 MB in the end (delta: 29.4 MB). Free memory was 155.8 MB in the beginning and 96.5 MB in the end (delta: 59.4 MB). Peak memory consumption was 88.7 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L17]              int N;
       VAL         [\old(N)=6, N=0]
[L21]              N = __VERIFIER_nondet_int()
[L22]  COND FALSE  !(N <= 0)
       VAL         [\old(N)=0, N=1]
[L23]  CALL        assume_abort_if_not(N <= 2147483647/sizeof(int))
       VAL         [\old(cond)=1, \old(N)=0, N=1]
[L11]  COND FALSE  !(!cond)
       VAL         [\old(cond)=1, \old(N)=0, cond=1, N=1]
[L23]  RET         assume_abort_if_not(N <= 2147483647/sizeof(int))
       VAL         [\old(N)=0, N=1]
[L25]              int i;
[L26]              int *a = malloc(sizeof(int)*N);
[L28]              i = 0
       VAL         [\old(N)=0, a={-1:0}, i=0, malloc(sizeof(int)*N)={-1:0}, N=1]
[L28]  COND TRUE   i < N
[L30]              a[i] = 0
       VAL         [\old(N)=0, a={-1:0}, i=0, malloc(sizeof(int)*N)={-1:0}, N=1]
[L28]              i++
       VAL         [\old(N)=0, a={-1:0}, i=1, malloc(sizeof(int)*N)={-1:0}, N=1]
[L28]  COND FALSE  !(i < N)
       VAL         [\old(N)=0, a={-1:0}, i=1, malloc(sizeof(int)*N)={-1:0}, N=1]
[L33]              i = 0
       VAL         [\old(N)=0, a={-1:0}, i=0, malloc(sizeof(int)*N)={-1:0}, N=1]
[L33]  COND TRUE   i < N
       VAL         [\old(N)=0, a={-1:0}, i=0, malloc(sizeof(int)*N)={-1:0}, N=1]
[L35]  COND TRUE   N%2 == 1
[L37]  EXPR        a[i]
[L37]              a[i] = a[i] + 2
[L33]              i++
       VAL         [\old(N)=0, a={-1:0}, i=1, malloc(sizeof(int)*N)={-1:0}, N=1]
[L33]  COND FALSE  !(i < N)
       VAL         [\old(N)=0, a={-1:0}, i=1, malloc(sizeof(int)*N)={-1:0}, N=1]
[L45]              i = 0
       VAL         [\old(N)=0, a={-1:0}, i=0, malloc(sizeof(int)*N)={-1:0}, N=1]
[L45]  COND TRUE   i < N
[L47]  EXPR        a[i]
       VAL         [\old(N)=0, a={-1:0}, a[i]=2, i=0, malloc(sizeof(int)*N)={-1:0}, N=1]
[L47]  CALL        __VERIFIER_assert(a[i] % 2 == N % 2)
       VAL         [\old(cond)=0, \old(N)=0, N=1]
[L13]  COND TRUE   !(cond)
       VAL         [\old(cond)=0, \old(N)=0, cond=0, N=1]
[L13]              __VERIFIER_error()
       VAL         [\old(cond)=0, \old(N)=0, cond=0, N=1]

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 5 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 57 SDtfs, 52 SDslu, 11 SDs, 0 SdLazy, 84 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 1596 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
Received shutdown request...