/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 07:06:15,795 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 07:06:15,797 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 07:06:15,816 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 07:06:15,817 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 07:06:15,819 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 07:06:15,821 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 07:06:15,831 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 07:06:15,835 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 07:06:15,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 07:06:15,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 07:06:15,838 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 07:06:15,839 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 07:06:15,841 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 07:06:15,843 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 07:06:15,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 07:06:15,849 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 07:06:15,850 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 07:06:15,854 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 07:06:15,858 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 07:06:15,860 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 07:06:15,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 07:06:15,864 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 07:06:15,865 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 07:06:15,868 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 07:06:15,868 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 07:06:15,868 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 07:06:15,870 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 07:06:15,872 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 07:06:15,873 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 07:06:15,873 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 07:06:15,874 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 07:06:15,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 07:06:15,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 07:06:15,878 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 07:06:15,878 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 07:06:15,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 07:06:15,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 07:06:15,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 07:06:15,882 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 07:06:15,884 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 07:06:15,885 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2020-04-18 07:06:15,919 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 07:06:15,922 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 07:06:15,924 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 07:06:15,924 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 07:06:15,924 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 07:06:15,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 07:06:15,924 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 07:06:15,925 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 07:06:15,925 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 07:06:15,927 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 07:06:15,927 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 07:06:15,927 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 07:06:15,928 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 07:06:15,928 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 07:06:15,928 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 07:06:15,928 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 07:06:15,928 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 07:06:15,929 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 07:06:15,929 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 07:06:15,929 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 07:06:15,929 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 07:06:15,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 07:06:15,930 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 07:06:15,930 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 07:06:15,931 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 07:06:15,931 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-18 07:06:15,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 07:06:15,932 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 07:06:15,932 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 07:06:15,932 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 07:06:16,236 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 07:06:16,254 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 07:06:16,257 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 07:06:16,259 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 07:06:16,259 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 07:06:16,260 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.oepc.i [2020-04-18 07:06:16,337 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc64a8f35/88efdf1bfaec427e9cf13417f130ded4/FLAGae59b0610 [2020-04-18 07:06:16,870 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 07:06:16,871 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe032_tso.oepc.i [2020-04-18 07:06:16,885 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc64a8f35/88efdf1bfaec427e9cf13417f130ded4/FLAGae59b0610 [2020-04-18 07:06:17,185 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc64a8f35/88efdf1bfaec427e9cf13417f130ded4 [2020-04-18 07:06:17,194 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 07:06:17,215 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 07:06:17,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 07:06:17,216 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 07:06:17,220 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 07:06:17,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:06:17" (1/1) ... [2020-04-18 07:06:17,224 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2748702d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:06:17, skipping insertion in model container [2020-04-18 07:06:17,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:06:17" (1/1) ... [2020-04-18 07:06:17,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 07:06:17,290 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 07:06:17,806 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 07:06:17,819 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 07:06:17,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 07:06:17,946 INFO L208 MainTranslator]: Completed translation [2020-04-18 07:06:17,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:06:17 WrapperNode [2020-04-18 07:06:17,947 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 07:06:17,948 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 07:06:17,948 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 07:06:17,948 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 07:06:17,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:06:17" (1/1) ... [2020-04-18 07:06:17,974 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:06:17" (1/1) ... [2020-04-18 07:06:17,998 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 07:06:17,999 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 07:06:17,999 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 07:06:17,999 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 07:06:18,009 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:06:17" (1/1) ... [2020-04-18 07:06:18,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:06:17" (1/1) ... [2020-04-18 07:06:18,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:06:17" (1/1) ... [2020-04-18 07:06:18,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:06:17" (1/1) ... [2020-04-18 07:06:18,019 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:06:17" (1/1) ... [2020-04-18 07:06:18,021 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:06:17" (1/1) ... [2020-04-18 07:06:18,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:06:17" (1/1) ... [2020-04-18 07:06:18,027 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 07:06:18,027 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 07:06:18,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 07:06:18,027 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 07:06:18,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:06:17" (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 [2020-04-18 07:06:18,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 07:06:18,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-18 07:06:18,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 07:06:18,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 07:06:18,104 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-18 07:06:18,105 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-18 07:06:18,105 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-18 07:06:18,106 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-18 07:06:18,106 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-18 07:06:18,107 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-18 07:06:18,107 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-18 07:06:18,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 07:06:18,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 07:06:18,111 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 07:06:18,507 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 07:06:18,507 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-18 07:06:18,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:06:18 BoogieIcfgContainer [2020-04-18 07:06:18,512 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 07:06:18,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 07:06:18,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 07:06:18,525 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 07:06:18,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:06:17" (1/3) ... [2020-04-18 07:06:18,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24c8539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:06:18, skipping insertion in model container [2020-04-18 07:06:18,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:06:17" (2/3) ... [2020-04-18 07:06:18,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24c8539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:06:18, skipping insertion in model container [2020-04-18 07:06:18,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:06:18" (3/3) ... [2020-04-18 07:06:18,531 INFO L109 eAbstractionObserver]: Analyzing ICFG safe032_tso.oepc.i [2020-04-18 07:06:18,539 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 07:06:18,540 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 07:06:18,546 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 07:06:18,547 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 07:06:18,573 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:06:18,573 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:06:18,574 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:06:18,574 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:06:18,574 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:06:18,575 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:06:18,575 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:06:18,575 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:06:18,576 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:06:18,576 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:06:18,577 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:06:18,577 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:06:18,577 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:06:18,578 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:06:18,578 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:06:18,578 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:06:18,578 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:06:18,579 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:06:18,583 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:06:18,583 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:06:18,584 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:06:18,584 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:06:18,590 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:06:18,590 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:06:18,591 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:06:18,591 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:06:18,594 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:06:18,594 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:06:18,594 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:06:18,595 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:06:18,611 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 07:06:18,628 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 07:06:18,628 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 07:06:18,628 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 07:06:18,629 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 07:06:18,629 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 07:06:18,629 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 07:06:18,629 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 07:06:18,629 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 07:06:18,643 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 77 places, 69 transitions, 153 flow [2020-04-18 07:06:19,146 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 8471 states. [2020-04-18 07:06:19,149 INFO L276 IsEmpty]: Start isEmpty. Operand 8471 states. [2020-04-18 07:06:19,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-04-18 07:06:19,178 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:06:19,180 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:06:19,180 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:06:19,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:06:19,187 INFO L82 PathProgramCache]: Analyzing trace with hash 60883713, now seen corresponding path program 1 times [2020-04-18 07:06:19,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:06:19,197 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016335604] [2020-04-18 07:06:19,198 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:06:19,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:06:19,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:06:19,673 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016335604] [2020-04-18 07:06:19,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:06:19,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 07:06:19,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150245529] [2020-04-18 07:06:19,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 07:06:19,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:06:19,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 07:06:19,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 07:06:19,701 INFO L87 Difference]: Start difference. First operand 8471 states. Second operand 7 states. [2020-04-18 07:06:20,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:06:20,421 INFO L93 Difference]: Finished difference Result 15571 states and 54621 transitions. [2020-04-18 07:06:20,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-04-18 07:06:20,423 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-04-18 07:06:20,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:06:20,496 INFO L225 Difference]: With dead ends: 15571 [2020-04-18 07:06:20,496 INFO L226 Difference]: Without dead ends: 4260 [2020-04-18 07:06:20,501 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-04-18 07:06:20,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4260 states. [2020-04-18 07:06:20,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4260 to 3786. [2020-04-18 07:06:20,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3786 states. [2020-04-18 07:06:20,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3786 states to 3786 states and 12301 transitions. [2020-04-18 07:06:20,795 INFO L78 Accepts]: Start accepts. Automaton has 3786 states and 12301 transitions. Word has length 35 [2020-04-18 07:06:20,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:06:20,797 INFO L479 AbstractCegarLoop]: Abstraction has 3786 states and 12301 transitions. [2020-04-18 07:06:20,798 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 07:06:20,798 INFO L276 IsEmpty]: Start isEmpty. Operand 3786 states and 12301 transitions. [2020-04-18 07:06:20,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-04-18 07:06:20,808 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:06:20,809 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:06:20,809 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:06:20,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:06:20,810 INFO L82 PathProgramCache]: Analyzing trace with hash -513234750, now seen corresponding path program 1 times [2020-04-18 07:06:20,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:06:20,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812499351] [2020-04-18 07:06:20,811 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:06:20,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:06:21,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:06:21,086 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812499351] [2020-04-18 07:06:21,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:06:21,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 07:06:21,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630590126] [2020-04-18 07:06:21,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 07:06:21,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:06:21,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 07:06:21,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 07:06:21,102 INFO L87 Difference]: Start difference. First operand 3786 states and 12301 transitions. Second operand 7 states. [2020-04-18 07:06:21,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:06:21,531 INFO L93 Difference]: Finished difference Result 4612 states and 14865 transitions. [2020-04-18 07:06:21,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-04-18 07:06:21,535 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 37 [2020-04-18 07:06:21,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:06:21,559 INFO L225 Difference]: With dead ends: 4612 [2020-04-18 07:06:21,559 INFO L226 Difference]: Without dead ends: 3099 [2020-04-18 07:06:21,560 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-04-18 07:06:21,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3099 states. [2020-04-18 07:06:21,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3099 to 2875. [2020-04-18 07:06:21,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2875 states. [2020-04-18 07:06:21,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2875 states to 2875 states and 9168 transitions. [2020-04-18 07:06:21,676 INFO L78 Accepts]: Start accepts. Automaton has 2875 states and 9168 transitions. Word has length 37 [2020-04-18 07:06:21,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:06:21,678 INFO L479 AbstractCegarLoop]: Abstraction has 2875 states and 9168 transitions. [2020-04-18 07:06:21,678 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 07:06:21,678 INFO L276 IsEmpty]: Start isEmpty. Operand 2875 states and 9168 transitions. [2020-04-18 07:06:21,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-04-18 07:06:21,689 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:06:21,689 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:06:21,690 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:06:21,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:06:21,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1629181299, now seen corresponding path program 1 times [2020-04-18 07:06:21,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:06:21,691 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286125615] [2020-04-18 07:06:21,691 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:06:21,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:06:21,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:06:21,869 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286125615] [2020-04-18 07:06:21,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:06:21,870 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 07:06:21,870 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982267150] [2020-04-18 07:06:21,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 07:06:21,871 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:06:21,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 07:06:21,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 07:06:21,872 INFO L87 Difference]: Start difference. First operand 2875 states and 9168 transitions. Second operand 7 states. [2020-04-18 07:06:22,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:06:22,222 INFO L93 Difference]: Finished difference Result 4341 states and 13716 transitions. [2020-04-18 07:06:22,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-04-18 07:06:22,223 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2020-04-18 07:06:22,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:06:22,245 INFO L225 Difference]: With dead ends: 4341 [2020-04-18 07:06:22,245 INFO L226 Difference]: Without dead ends: 2687 [2020-04-18 07:06:22,245 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-04-18 07:06:22,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2687 states. [2020-04-18 07:06:22,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2687 to 2423. [2020-04-18 07:06:22,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2423 states. [2020-04-18 07:06:22,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2423 states to 2423 states and 7632 transitions. [2020-04-18 07:06:22,340 INFO L78 Accepts]: Start accepts. Automaton has 2423 states and 7632 transitions. Word has length 40 [2020-04-18 07:06:22,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:06:22,341 INFO L479 AbstractCegarLoop]: Abstraction has 2423 states and 7632 transitions. [2020-04-18 07:06:22,341 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 07:06:22,341 INFO L276 IsEmpty]: Start isEmpty. Operand 2423 states and 7632 transitions. [2020-04-18 07:06:22,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-04-18 07:06:22,348 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:06:22,348 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:06:22,348 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:06:22,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:06:22,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1062356239, now seen corresponding path program 1 times [2020-04-18 07:06:22,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:06:22,350 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571689653] [2020-04-18 07:06:22,350 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:06:22,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:06:22,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:06:22,484 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571689653] [2020-04-18 07:06:22,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:06:22,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 07:06:22,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049343943] [2020-04-18 07:06:22,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 07:06:22,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:06:22,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 07:06:22,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 07:06:22,486 INFO L87 Difference]: Start difference. First operand 2423 states and 7632 transitions. Second operand 7 states. [2020-04-18 07:06:22,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:06:22,821 INFO L93 Difference]: Finished difference Result 3089 states and 9741 transitions. [2020-04-18 07:06:22,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-04-18 07:06:22,822 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2020-04-18 07:06:22,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:06:22,848 INFO L225 Difference]: With dead ends: 3089 [2020-04-18 07:06:22,849 INFO L226 Difference]: Without dead ends: 2465 [2020-04-18 07:06:22,850 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-04-18 07:06:22,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2465 states. [2020-04-18 07:06:22,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2465 to 2127. [2020-04-18 07:06:22,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2127 states. [2020-04-18 07:06:22,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2127 states to 2127 states and 6610 transitions. [2020-04-18 07:06:22,944 INFO L78 Accepts]: Start accepts. Automaton has 2127 states and 6610 transitions. Word has length 40 [2020-04-18 07:06:22,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:06:22,945 INFO L479 AbstractCegarLoop]: Abstraction has 2127 states and 6610 transitions. [2020-04-18 07:06:22,945 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 07:06:22,945 INFO L276 IsEmpty]: Start isEmpty. Operand 2127 states and 6610 transitions. [2020-04-18 07:06:22,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-04-18 07:06:22,952 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:06:22,952 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:06:22,952 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:06:22,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:06:22,953 INFO L82 PathProgramCache]: Analyzing trace with hash -1032194322, now seen corresponding path program 1 times [2020-04-18 07:06:22,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:06:22,953 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940894022] [2020-04-18 07:06:22,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:06:22,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:06:23,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:06:23,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940894022] [2020-04-18 07:06:23,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:06:23,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 07:06:23,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313676921] [2020-04-18 07:06:23,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 07:06:23,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:06:23,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 07:06:23,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 07:06:23,105 INFO L87 Difference]: Start difference. First operand 2127 states and 6610 transitions. Second operand 6 states. [2020-04-18 07:06:23,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:06:23,226 INFO L93 Difference]: Finished difference Result 2624 states and 8022 transitions. [2020-04-18 07:06:23,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-04-18 07:06:23,226 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2020-04-18 07:06:23,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:06:23,239 INFO L225 Difference]: With dead ends: 2624 [2020-04-18 07:06:23,240 INFO L226 Difference]: Without dead ends: 1888 [2020-04-18 07:06:23,240 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-04-18 07:06:23,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1888 states. [2020-04-18 07:06:23,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1888 to 1888. [2020-04-18 07:06:23,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1888 states. [2020-04-18 07:06:23,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1888 states to 1888 states and 5735 transitions. [2020-04-18 07:06:23,311 INFO L78 Accepts]: Start accepts. Automaton has 1888 states and 5735 transitions. Word has length 42 [2020-04-18 07:06:23,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:06:23,312 INFO L479 AbstractCegarLoop]: Abstraction has 1888 states and 5735 transitions. [2020-04-18 07:06:23,312 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 07:06:23,312 INFO L276 IsEmpty]: Start isEmpty. Operand 1888 states and 5735 transitions. [2020-04-18 07:06:23,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-04-18 07:06:23,319 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:06:23,319 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:06:23,319 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:06:23,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:06:23,320 INFO L82 PathProgramCache]: Analyzing trace with hash 850515427, now seen corresponding path program 1 times [2020-04-18 07:06:23,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:06:23,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632513467] [2020-04-18 07:06:23,321 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:06:23,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:06:23,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:06:23,491 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632513467] [2020-04-18 07:06:23,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:06:23,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-04-18 07:06:23,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121495612] [2020-04-18 07:06:23,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-04-18 07:06:23,492 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:06:23,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-04-18 07:06:23,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-04-18 07:06:23,494 INFO L87 Difference]: Start difference. First operand 1888 states and 5735 transitions. Second operand 7 states. [2020-04-18 07:06:23,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:06:23,657 INFO L93 Difference]: Finished difference Result 1819 states and 5350 transitions. [2020-04-18 07:06:23,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-04-18 07:06:23,658 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 43 [2020-04-18 07:06:23,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:06:23,664 INFO L225 Difference]: With dead ends: 1819 [2020-04-18 07:06:23,664 INFO L226 Difference]: Without dead ends: 1247 [2020-04-18 07:06:23,665 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-04-18 07:06:23,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1247 states. [2020-04-18 07:06:23,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1247 to 1247. [2020-04-18 07:06:23,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1247 states. [2020-04-18 07:06:23,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 3574 transitions. [2020-04-18 07:06:23,699 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 3574 transitions. Word has length 43 [2020-04-18 07:06:23,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:06:23,700 INFO L479 AbstractCegarLoop]: Abstraction has 1247 states and 3574 transitions. [2020-04-18 07:06:23,700 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-04-18 07:06:23,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 3574 transitions. [2020-04-18 07:06:23,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 07:06:23,704 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:06:23,704 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:06:23,704 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:06:23,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:06:23,705 INFO L82 PathProgramCache]: Analyzing trace with hash -381427612, now seen corresponding path program 1 times [2020-04-18 07:06:23,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:06:23,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127833067] [2020-04-18 07:06:23,706 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:06:23,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:06:23,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:06:23,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127833067] [2020-04-18 07:06:23,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:06:23,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-04-18 07:06:23,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984546814] [2020-04-18 07:06:23,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-04-18 07:06:23,833 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:06:23,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-04-18 07:06:23,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-04-18 07:06:23,834 INFO L87 Difference]: Start difference. First operand 1247 states and 3574 transitions. Second operand 8 states. [2020-04-18 07:06:23,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:06:23,945 INFO L93 Difference]: Finished difference Result 815 states and 2251 transitions. [2020-04-18 07:06:23,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-04-18 07:06:23,945 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 45 [2020-04-18 07:06:23,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:06:23,946 INFO L225 Difference]: With dead ends: 815 [2020-04-18 07:06:23,946 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 07:06:23,946 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-04-18 07:06:23,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 07:06:23,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 07:06:23,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 07:06:23,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 07:06:23,947 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2020-04-18 07:06:23,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:06:23,948 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 07:06:23,948 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-04-18 07:06:23,948 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 07:06:23,948 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 07:06:23,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 07:06:23 BasicIcfg [2020-04-18 07:06:23,953 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 07:06:23,956 INFO L168 Benchmark]: Toolchain (without parser) took 6759.95 ms. Allocated memory was 139.5 MB in the beginning and 336.1 MB in the end (delta: 196.6 MB). Free memory was 99.6 MB in the beginning and 176.8 MB in the end (delta: -77.2 MB). Peak memory consumption was 119.4 MB. Max. memory is 7.1 GB. [2020-04-18 07:06:23,957 INFO L168 Benchmark]: CDTParser took 1.35 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-04-18 07:06:23,958 INFO L168 Benchmark]: CACSL2BoogieTranslator took 730.86 ms. Allocated memory was 139.5 MB in the beginning and 201.3 MB in the end (delta: 61.9 MB). Free memory was 97.6 MB in the beginning and 158.3 MB in the end (delta: -60.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. [2020-04-18 07:06:23,959 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.04 ms. Allocated memory is still 201.3 MB. Free memory was 158.3 MB in the beginning and 156.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-04-18 07:06:23,960 INFO L168 Benchmark]: Boogie Preprocessor took 27.98 ms. Allocated memory is still 201.3 MB. Free memory was 156.2 MB in the beginning and 154.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-04-18 07:06:23,961 INFO L168 Benchmark]: RCFGBuilder took 484.79 ms. Allocated memory is still 201.3 MB. Free memory was 154.8 MB in the beginning and 132.9 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-04-18 07:06:23,962 INFO L168 Benchmark]: TraceAbstraction took 5440.60 ms. Allocated memory was 201.3 MB in the beginning and 336.1 MB in the end (delta: 134.7 MB). Free memory was 132.2 MB in the beginning and 176.8 MB in the end (delta: -44.6 MB). Peak memory consumption was 90.2 MB. Max. memory is 7.1 GB. [2020-04-18 07:06:23,966 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.35 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 730.86 ms. Allocated memory was 139.5 MB in the beginning and 201.3 MB in the end (delta: 61.9 MB). Free memory was 97.6 MB in the beginning and 158.3 MB in the end (delta: -60.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.04 ms. Allocated memory is still 201.3 MB. Free memory was 158.3 MB in the beginning and 156.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.98 ms. Allocated memory is still 201.3 MB. Free memory was 156.2 MB in the beginning and 154.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 484.79 ms. Allocated memory is still 201.3 MB. Free memory was 154.8 MB in the beginning and 132.9 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5440.60 ms. Allocated memory was 201.3 MB in the beginning and 336.1 MB in the end (delta: 134.7 MB). Free memory was 132.2 MB in the beginning and 176.8 MB in the end (delta: -44.6 MB). Peak memory consumption was 90.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.3s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.5s, HoareTripleCheckerStatistics: 643 SDtfs, 1266 SDslu, 2161 SDs, 0 SdLazy, 347 SolverSat, 84 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8471occurred 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: 0.6s AutomataMinimizationTime, 7 MinimizatonAttempts, 1300 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 282 NumberOfCodeBlocks, 282 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 275 ConstructedInterpolants, 0 QuantifiedInterpolants, 54967 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 correct! Received shutdown request...