java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/KojakBplInline.xml -s ../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Kojak_Default.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/gcd_2.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-9f4048f [2018-10-04 13:16:06,699 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-04 13:16:06,702 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-04 13:16:06,720 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-04 13:16:06,722 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-04 13:16:06,723 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-04 13:16:06,724 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-04 13:16:06,726 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-04 13:16:06,728 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-04 13:16:06,729 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-04 13:16:06,730 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-04 13:16:06,730 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-04 13:16:06,732 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-04 13:16:06,733 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-04 13:16:06,734 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-04 13:16:06,735 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-04 13:16:06,736 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-04 13:16:06,738 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-04 13:16:06,740 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-04 13:16:06,741 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-04 13:16:06,742 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-04 13:16:06,744 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-04 13:16:06,746 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-04 13:16:06,746 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-04 13:16:06,747 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-04 13:16:06,747 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-04 13:16:06,748 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-04 13:16:06,749 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-04 13:16:06,750 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-04 13:16:06,751 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-04 13:16:06,751 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-04 13:16:06,752 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-04 13:16:06,752 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-04 13:16:06,752 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-04 13:16:06,753 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-04 13:16:06,754 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-04 13:16:06,754 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Kojak_Default.epf [2018-10-04 13:16:06,781 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-04 13:16:06,782 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-04 13:16:06,783 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-04 13:16:06,783 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-04 13:16:06,784 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-04 13:16:06,784 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-04 13:16:06,784 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-04 13:16:06,784 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-04 13:16:06,784 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-04 13:16:06,785 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-04 13:16:06,785 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-04 13:16:06,785 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-04 13:16:06,785 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-04 13:16:06,785 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-04 13:16:06,786 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-04 13:16:06,787 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-04 13:16:06,787 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-04 13:16:06,787 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-04 13:16:06,788 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-04 13:16:06,788 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-04 13:16:06,788 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-04 13:16:06,788 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-04 13:16:06,788 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-04 13:16:06,790 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-04 13:16:06,790 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-04 13:16:06,790 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-04 13:16:06,791 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-04 13:16:06,791 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-04 13:16:06,791 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-04 13:16:06,852 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-04 13:16:06,867 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-04 13:16:06,875 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-04 13:16:06,877 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-04 13:16:06,877 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-04 13:16:06,878 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/gcd_2.i_4.bpl [2018-10-04 13:16:06,878 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/gcd_2.i_4.bpl' [2018-10-04 13:16:06,952 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-04 13:16:06,954 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-04 13:16:06,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-04 13:16:06,956 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-04 13:16:06,956 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-04 13:16:06,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:16:06" (1/1) ... [2018-10-04 13:16:06,989 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:16:06" (1/1) ... [2018-10-04 13:16:06,997 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-04 13:16:06,997 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-04 13:16:06,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-04 13:16:06,998 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-04 13:16:07,010 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:16:06" (1/1) ... [2018-10-04 13:16:07,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:16:06" (1/1) ... [2018-10-04 13:16:07,011 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:16:06" (1/1) ... [2018-10-04 13:16:07,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:16:06" (1/1) ... [2018-10-04 13:16:07,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:16:06" (1/1) ... [2018-10-04 13:16:07,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:16:06" (1/1) ... [2018-10-04 13:16:07,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:16:06" (1/1) ... [2018-10-04 13:16:07,024 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-04 13:16:07,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-04 13:16:07,028 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-04 13:16:07,028 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-04 13:16:07,029 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 01:16:06" (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:10000 (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:10000 [2018-10-04 13:16:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-04 13:16:07,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-04 13:16:07,343 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-04 13:16:07,344 INFO L202 PluginConnector]: Adding new model gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 01:16:07 BoogieIcfgContainer [2018-10-04 13:16:07,344 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-04 13:16:07,345 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-04 13:16:07,345 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-04 13:16:07,357 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-04 13:16:07,357 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "gcd_2.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 01:16:07" (1/1) ... [2018-10-04 13:16:07,370 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 13:16:07,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:16:07,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-10-04 13:16:07,415 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-10-04 13:16:07,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-10-04 13:16:07,419 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:16:07,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:16:07,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 13:16:07,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:16:07,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2018-10-04 13:16:07,825 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2018-10-04 13:16:07,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-04 13:16:07,826 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:16:07,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:16:07,876 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 13:16:07,950 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 13:16:08,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:16:08,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 9 states and 13 transitions. [2018-10-04 13:16:08,457 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 13 transitions. [2018-10-04 13:16:08,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-04 13:16:08,461 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:16:08,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:16:08,504 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 13:16:51,553 WARN L178 SmtUtils]: Spent 10.76 s on a formula simplification. DAG size of input: 457 DAG size of output: 25 [2018-10-04 13:16:51,684 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 13:16:55,283 WARN L178 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-10-04 13:17:07,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-04 13:17:07,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 13 states and 23 transitions. [2018-10-04 13:17:07,846 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 23 transitions. [2018-10-04 13:17:07,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-04 13:17:07,846 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-04 13:17:07,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 13:17:07,936 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 13:17:49,273 WARN L178 SmtUtils]: Spent 639.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 44 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown