/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/nla-digbench/geo1.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-24 17:23:10,556 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-24 17:23:10,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 17:23:10,590 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 17:23:10,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 17:23:10,592 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 17:23:10,594 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 17:23:10,596 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 17:23:10,598 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 17:23:10,599 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 17:23:10,601 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 17:23:10,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 17:23:10,602 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 17:23:10,604 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 17:23:10,605 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 17:23:10,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 17:23:10,608 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 17:23:10,609 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 17:23:10,611 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 17:23:10,614 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 17:23:10,616 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 17:23:10,618 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 17:23:10,620 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 17:23:10,621 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 17:23:10,624 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 17:23:10,624 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 17:23:10,624 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 17:23:10,626 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 17:23:10,626 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 17:23:10,627 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 17:23:10,628 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 17:23:10,629 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 17:23:10,630 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 17:23:10,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 17:23:10,635 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 17:23:10,635 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 17:23:10,636 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 17:23:10,636 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 17:23:10,637 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 17:23:10,638 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 17:23:10,639 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 17:23:10,641 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-24 17:23:10,702 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-24 17:23:10,702 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 17:23:10,703 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 17:23:10,704 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-24 17:23:10,705 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-24 17:23:10,705 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 17:23:10,705 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-24 17:23:10,705 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-24 17:23:10,705 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-24 17:23:10,706 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-24 17:23:10,706 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 17:23:10,706 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 17:23:10,706 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 17:23:10,706 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-24 17:23:10,707 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-24 17:23:10,708 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-24 17:23:10,708 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-24 17:23:10,709 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 17:23:10,709 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-24 17:23:10,709 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-24 17:23:10,710 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-24 17:23:10,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 17:23:10,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 17:23:10,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 17:23:10,710 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 17:23:10,711 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-24 17:23:10,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 17:23:10,711 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 17:23:10,711 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-24 17:23:10,711 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;log-additional-information=true;
[2020-09-24 17:23:11,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 17:23:11,287 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 17:23:11,293 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 17:23:11,295 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-24 17:23:11,296 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-24 17:23:11,298 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/geo1.c
[2020-09-24 17:23:11,371 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c6648a4e1/0a096eb5244b459b8ffc2785611543fe/FLAG1f2a1fd1c
[2020-09-24 17:23:11,911 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-24 17:23:11,912 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/nla-digbench/geo1.c
[2020-09-24 17:23:11,921 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c6648a4e1/0a096eb5244b459b8ffc2785611543fe/FLAG1f2a1fd1c
[2020-09-24 17:23:12,239 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c6648a4e1/0a096eb5244b459b8ffc2785611543fe
[2020-09-24 17:23:12,254 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 17:23:12,262 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 17:23:12,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 17:23:12,265 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 17:23:12,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 17:23:12,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:23:12" (1/1) ...
[2020-09-24 17:23:12,276 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ef9cdb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:23:12, skipping insertion in model container
[2020-09-24 17:23:12,276 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:23:12" (1/1) ...
[2020-09-24 17:23:12,287 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-24 17:23:12,316 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-24 17:23:12,590 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 17:23:12,594 INFO L203 MainTranslator]: Completed pre-run
[2020-09-24 17:23:12,613 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 17:23:12,630 INFO L208 MainTranslator]: Completed translation
[2020-09-24 17:23:12,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:23:12 WrapperNode
[2020-09-24 17:23:12,631 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 17:23:12,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 17:23:12,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 17:23:12,632 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 17:23:12,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:23:12" (1/1) ...
[2020-09-24 17:23:12,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:23:12" (1/1) ...
[2020-09-24 17:23:12,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:23:12" (1/1) ...
[2020-09-24 17:23:12,654 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:23:12" (1/1) ...
[2020-09-24 17:23:12,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:23:12" (1/1) ...
[2020-09-24 17:23:12,755 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:23:12" (1/1) ...
[2020-09-24 17:23:12,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:23:12" (1/1) ...
[2020-09-24 17:23:12,761 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 17:23:12,762 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 17:23:12,762 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 17:23:12,762 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-24 17:23:12,765 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:23:12" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/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
[2020-09-24 17:23:12,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 17:23:12,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 17:23:12,841 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2020-09-24 17:23:12,841 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-09-24 17:23:12,842 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 17:23:12,842 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 17:23:12,842 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 17:23:12,842 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-09-24 17:23:12,842 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2020-09-24 17:23:12,843 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-09-24 17:23:12,843 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-24 17:23:12,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 17:23:12,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 17:23:13,097 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 17:23:13,097 INFO L295 CfgBuilder]: Removed 1 assume(true) statements.
[2020-09-24 17:23:13,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:23:13 BoogieIcfgContainer
[2020-09-24 17:23:13,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 17:23:13,105 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 17:23:13,106 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 17:23:13,110 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-24 17:23:13,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:23:12" (1/3) ...
[2020-09-24 17:23:13,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42165f60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:23:13, skipping insertion in model container
[2020-09-24 17:23:13,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:23:12" (2/3) ...
[2020-09-24 17:23:13,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42165f60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:23:13, skipping insertion in model container
[2020-09-24 17:23:13,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:23:13" (3/3) ...
[2020-09-24 17:23:13,114 INFO L109 eAbstractionObserver]: Analyzing ICFG geo1.c
[2020-09-24 17:23:13,128 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 17:23:13,140 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 17:23:13,167 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 17:23:13,201 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-24 17:23:13,202 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-24 17:23:13,202 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 17:23:13,202 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 17:23:13,202 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 17:23:13,202 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-24 17:23:13,203 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 17:23:13,203 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 17:23:13,229 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states.
[2020-09-24 17:23:13,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-09-24 17:23:13,238 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 17:23:13,239 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]
[2020-09-24 17:23:13,240 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 17:23:13,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 17:23:13,248 INFO L82 PathProgramCache]: Analyzing trace with hash -46286132, now seen corresponding path program 1 times
[2020-09-24 17:23:13,261 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 17:23:13,261 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1488522645]
[2020-09-24 17:23:13,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 17:23:13,372 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2020-09-24 17:23:13,372 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility
[2020-09-24 17:23:13,373 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 17:23:13,377 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 17:23:13,393 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually.
[2020-09-24 17:23:13,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 05:23:13 BoogieIcfgContainer
[2020-09-24 17:23:13,393 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 17:23:13,398 INFO L168 Benchmark]: Toolchain (without parser) took 1139.48 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 103.2 MB in the beginning and 156.9 MB in the end (delta: -53.6 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB.
[2020-09-24 17:23:13,399 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.4 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB.
[2020-09-24 17:23:13,400 INFO L168 Benchmark]: CACSL2BoogieTranslator took 366.01 ms. Allocated memory is still 147.3 MB. Free memory was 102.8 MB in the beginning and 93.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB.
[2020-09-24 17:23:13,401 INFO L168 Benchmark]: Boogie Preprocessor took 130.10 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 93.2 MB in the beginning and 182.3 MB in the end (delta: -89.0 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB.
[2020-09-24 17:23:13,402 INFO L168 Benchmark]: RCFGBuilder took 342.43 ms. Allocated memory is still 203.9 MB. Free memory was 182.3 MB in the beginning and 168.4 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB.
[2020-09-24 17:23:13,403 INFO L168 Benchmark]: TraceAbstraction took 288.20 ms. Allocated memory is still 203.9 MB. Free memory was 168.4 MB in the beginning and 156.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB.
[2020-09-24 17:23:13,408 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.30 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.4 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 366.01 ms. Allocated memory is still 147.3 MB. Free memory was 102.8 MB in the beginning and 93.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 130.10 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 93.2 MB in the beginning and 182.3 MB in the end (delta: -89.0 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 342.43 ms. Allocated memory is still 203.9 MB. Free memory was 182.3 MB in the beginning and 168.4 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 288.20 ms. Allocated memory is still 203.9 MB. Free memory was 168.4 MB in the beginning and 156.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- UnprovableResult [Line: 16]: Unable to prove that call of __VERIFIER_error() unreachable
Unable to prove that call of __VERIFIER_error() unreachable
Reason: unable to decide satisfiability of path constraint.
Possible FailurePath:
[L21] int z, k;
[L22] int x, y, c;
[L23] z = __VERIFIER_nondet_int()
[L24] k = __VERIFIER_nondet_int()
[L26] x = 1
[L27] y = z
[L28] c = 1
[L30] COND TRUE 1
[L31] CALL __VERIFIER_assert(x*z - x - y + 1 == 0)
[L14] COND TRUE !(cond)
[L16] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 5 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
Received shutdown request...