/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe037_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-17 01:29:17,701 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-17 01:29:17,704 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-17 01:29:17,731 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-17 01:29:17,731 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-17 01:29:17,733 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-17 01:29:17,734 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-17 01:29:17,736 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-17 01:29:17,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-17 01:29:17,739 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-17 01:29:17,740 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-17 01:29:17,741 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-17 01:29:17,742 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-17 01:29:17,743 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-17 01:29:17,744 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-17 01:29:17,745 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-17 01:29:17,746 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-17 01:29:17,747 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-17 01:29:17,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-17 01:29:17,751 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-17 01:29:17,753 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-17 01:29:17,754 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-17 01:29:17,755 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-17 01:29:17,756 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-17 01:29:17,759 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-17 01:29:17,762 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-17 01:29:17,763 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-17 01:29:17,764 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-17 01:29:17,765 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-17 01:29:17,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-17 01:29:17,766 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-17 01:29:17,767 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-17 01:29:17,767 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-17 01:29:17,767 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-17 01:29:17,768 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-17 01:29:17,769 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-17 01:29:17,775 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-17 01:29:17,800 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-17 01:29:17,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-17 01:29:17,802 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-17 01:29:17,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-17 01:29:17,802 INFO L138 SettingsManager]: * Use SBE=true [2020-09-17 01:29:17,806 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-17 01:29:17,806 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-17 01:29:17,806 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-17 01:29:17,806 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-17 01:29:17,807 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-17 01:29:17,807 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-17 01:29:17,807 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-17 01:29:17,807 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-17 01:29:17,808 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-17 01:29:17,808 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-17 01:29:17,808 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-17 01:29:17,808 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-17 01:29:17,808 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-17 01:29:17,809 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-17 01:29:17,811 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-17 01:29:17,811 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-17 01:29:17,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-17 01:29:17,812 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-17 01:29:17,812 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-17 01:29:17,812 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-17 01:29:17,812 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-17 01:29:17,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-17 01:29:17,813 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-17 01:29:17,813 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-17 01:29:17,813 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-17 01:29:18,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-17 01:29:18,305 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-17 01:29:18,310 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-17 01:29:18,312 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-17 01:29:18,312 INFO L275 PluginConnector]: CDTParser initialized [2020-09-17 01:29:18,314 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe037_tso.oepc.i [2020-09-17 01:29:18,412 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fd924b18/8ae08f430f5046858cfe9667c66705b7/FLAGfbd747e06 [2020-09-17 01:29:19,107 INFO L306 CDTParser]: Found 1 translation units. [2020-09-17 01:29:19,108 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe037_tso.oepc.i [2020-09-17 01:29:19,125 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fd924b18/8ae08f430f5046858cfe9667c66705b7/FLAGfbd747e06 [2020-09-17 01:29:19,343 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6fd924b18/8ae08f430f5046858cfe9667c66705b7 [2020-09-17 01:29:19,360 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-17 01:29:19,367 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-17 01:29:19,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-17 01:29:19,372 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-17 01:29:19,377 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-17 01:29:19,379 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 01:29:19" (1/1) ... [2020-09-17 01:29:19,384 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b3fc234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:19, skipping insertion in model container [2020-09-17 01:29:19,385 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 01:29:19" (1/1) ... [2020-09-17 01:29:19,397 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-17 01:29:19,478 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-17 01:29:20,015 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 01:29:20,030 INFO L203 MainTranslator]: Completed pre-run [2020-09-17 01:29:20,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 01:29:20,227 INFO L208 MainTranslator]: Completed translation [2020-09-17 01:29:20,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:20 WrapperNode [2020-09-17 01:29:20,229 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-17 01:29:20,230 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-17 01:29:20,230 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-17 01:29:20,230 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-17 01:29:20,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:20" (1/1) ... [2020-09-17 01:29:20,264 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:20" (1/1) ... [2020-09-17 01:29:20,290 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-17 01:29:20,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-17 01:29:20,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-17 01:29:20,291 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-17 01:29:20,302 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:20" (1/1) ... [2020-09-17 01:29:20,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:20" (1/1) ... [2020-09-17 01:29:20,306 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:20" (1/1) ... [2020-09-17 01:29:20,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:20" (1/1) ... [2020-09-17 01:29:20,313 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:20" (1/1) ... [2020-09-17 01:29:20,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:20" (1/1) ... [2020-09-17 01:29:20,319 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:20" (1/1) ... [2020-09-17 01:29:20,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-17 01:29:20,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-17 01:29:20,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-17 01:29:20,323 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-17 01:29:20,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:20" (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 [2020-09-17 01:29:20,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-17 01:29:20,408 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-17 01:29:20,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-17 01:29:20,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-17 01:29:20,408 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-17 01:29:20,409 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-17 01:29:20,409 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-17 01:29:20,409 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-17 01:29:20,409 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-17 01:29:20,409 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-17 01:29:20,410 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-17 01:29:20,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-17 01:29:20,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-17 01:29:20,413 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-17 01:29:20,833 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-17 01:29:20,834 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-17 01:29:20,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 01:29:20 BoogieIcfgContainer [2020-09-17 01:29:20,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-17 01:29:20,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-17 01:29:20,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-17 01:29:20,845 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-17 01:29:20,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.09 01:29:19" (1/3) ... [2020-09-17 01:29:20,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16b75a54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 01:29:20, skipping insertion in model container [2020-09-17 01:29:20,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:29:20" (2/3) ... [2020-09-17 01:29:20,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16b75a54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 01:29:20, skipping insertion in model container [2020-09-17 01:29:20,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 01:29:20" (3/3) ... [2020-09-17 01:29:20,850 INFO L109 eAbstractionObserver]: Analyzing ICFG safe037_tso.oepc.i [2020-09-17 01:29:20,862 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-17 01:29:20,862 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-17 01:29:20,872 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-17 01:29:20,873 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-17 01:29:20,901 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:20,901 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:20,902 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:20,902 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:20,903 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:20,903 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:20,903 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:20,904 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:20,904 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:20,904 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:20,905 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:20,905 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:20,905 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:20,906 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:20,906 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:20,906 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:20,907 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:20,907 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:20,912 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:20,912 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:20,912 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:20,913 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:20,928 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:20,928 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:20,928 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:20,929 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:20,931 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:20,932 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:20,932 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:20,932 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:29:20,957 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-17 01:29:20,986 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-17 01:29:20,987 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-17 01:29:20,987 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-17 01:29:20,987 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-17 01:29:20,987 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-17 01:29:20,987 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-17 01:29:20,988 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-17 01:29:20,988 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-17 01:29:21,007 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-09-17 01:29:21,010 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-17 01:29:21,060 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-17 01:29:21,061 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 01:29:21,068 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-17 01:29:21,071 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-09-17 01:29:21,093 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-09-17 01:29:21,094 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 01:29:21,094 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-17 01:29:21,097 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-17 01:29:21,098 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-17 01:29:22,652 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2315 [2020-09-17 01:29:22,652 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-09-17 01:29:22,657 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-09-17 01:29:22,689 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-09-17 01:29:22,692 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-09-17 01:29:22,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-17 01:29:22,702 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:29:22,703 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:29:22,704 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:29:22,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:29:22,712 INFO L82 PathProgramCache]: Analyzing trace with hash 385809968, now seen corresponding path program 1 times [2020-09-17 01:29:22,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:29:22,725 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436416732] [2020-09-17 01:29:22,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:29:22,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:29:22,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:29:22,932 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436416732] [2020-09-17 01:29:22,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:29:22,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 01:29:22,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834506737] [2020-09-17 01:29:22,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-17 01:29:22,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:29:22,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-17 01:29:22,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-17 01:29:22,963 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-09-17 01:29:23,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:29:23,003 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-09-17 01:29:23,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-17 01:29:23,005 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-09-17 01:29:23,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:29:23,026 INFO L225 Difference]: With dead ends: 362 [2020-09-17 01:29:23,027 INFO L226 Difference]: Without dead ends: 298 [2020-09-17 01:29:23,029 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-17 01:29:23,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-09-17 01:29:23,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-09-17 01:29:23,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-09-17 01:29:23,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-09-17 01:29:23,132 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-09-17 01:29:23,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:29:23,133 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-09-17 01:29:23,134 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-17 01:29:23,134 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-09-17 01:29:23,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-17 01:29:23,135 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:29:23,136 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:29:23,136 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-17 01:29:23,136 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:29:23,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:29:23,137 INFO L82 PathProgramCache]: Analyzing trace with hash -924796273, now seen corresponding path program 1 times [2020-09-17 01:29:23,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:29:23,137 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188470231] [2020-09-17 01:29:23,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:29:23,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:29:23,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:29:23,238 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188470231] [2020-09-17 01:29:23,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:29:23,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 01:29:23,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439888846] [2020-09-17 01:29:23,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-17 01:29:23,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:29:23,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-17 01:29:23,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 01:29:23,242 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-09-17 01:29:23,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:29:23,268 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-09-17 01:29:23,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-17 01:29:23,269 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-09-17 01:29:23,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:29:23,271 INFO L225 Difference]: With dead ends: 217 [2020-09-17 01:29:23,272 INFO L226 Difference]: Without dead ends: 217 [2020-09-17 01:29:23,272 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-17 01:29:23,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-09-17 01:29:23,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-09-17 01:29:23,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-09-17 01:29:23,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-09-17 01:29:23,292 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-09-17 01:29:23,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:29:23,292 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-09-17 01:29:23,292 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-17 01:29:23,292 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-09-17 01:29:23,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-17 01:29:23,294 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:29:23,294 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:29:23,295 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-17 01:29:23,295 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:29:23,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:29:23,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1123394358, now seen corresponding path program 1 times [2020-09-17 01:29:23,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:29:23,296 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667341257] [2020-09-17 01:29:23,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:29:23,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:29:23,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:29:23,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667341257] [2020-09-17 01:29:23,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:29:23,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 01:29:23,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943015022] [2020-09-17 01:29:23,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 01:29:23,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:29:23,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 01:29:23,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-17 01:29:23,425 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-09-17 01:29:23,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:29:23,451 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-09-17 01:29:23,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-17 01:29:23,451 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-17 01:29:23,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:29:23,453 INFO L225 Difference]: With dead ends: 136 [2020-09-17 01:29:23,453 INFO L226 Difference]: Without dead ends: 136 [2020-09-17 01:29:23,453 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-17 01:29:23,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-09-17 01:29:23,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-09-17 01:29:23,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-09-17 01:29:23,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-09-17 01:29:23,463 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-09-17 01:29:23,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:29:23,463 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-09-17 01:29:23,463 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 01:29:23,464 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-09-17 01:29:23,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-17 01:29:23,465 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:29:23,465 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:29:23,466 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-17 01:29:23,466 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:29:23,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:29:23,466 INFO L82 PathProgramCache]: Analyzing trace with hash -104701845, now seen corresponding path program 1 times [2020-09-17 01:29:23,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:29:23,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017397624] [2020-09-17 01:29:23,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:29:23,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:29:23,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:29:23,557 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017397624] [2020-09-17 01:29:23,558 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:29:23,558 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-17 01:29:23,558 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031507869] [2020-09-17 01:29:23,559 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:29:23,559 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:29:23,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:29:23,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:29:23,561 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-09-17 01:29:23,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:29:23,602 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-09-17 01:29:23,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 01:29:23,603 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-09-17 01:29:23,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:29:23,604 INFO L225 Difference]: With dead ends: 109 [2020-09-17 01:29:23,604 INFO L226 Difference]: Without dead ends: 109 [2020-09-17 01:29:23,605 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:29:23,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-09-17 01:29:23,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-09-17 01:29:23,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-09-17 01:29:23,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-09-17 01:29:23,612 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-09-17 01:29:23,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:29:23,613 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-09-17 01:29:23,613 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:29:23,613 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-09-17 01:29:23,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-17 01:29:23,620 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:29:23,620 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:29:23,621 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-17 01:29:23,621 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:29:23,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:29:23,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1786856379, now seen corresponding path program 1 times [2020-09-17 01:29:23,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:29:23,622 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523746115] [2020-09-17 01:29:23,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:29:23,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:29:23,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:29:23,756 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523746115] [2020-09-17 01:29:23,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:29:23,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-17 01:29:23,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962393340] [2020-09-17 01:29:23,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:29:23,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:29:23,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:29:23,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:29:23,759 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 5 states. [2020-09-17 01:29:23,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:29:23,801 INFO L93 Difference]: Finished difference Result 135 states and 291 transitions. [2020-09-17 01:29:23,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 01:29:23,802 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-17 01:29:23,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:29:23,803 INFO L225 Difference]: With dead ends: 135 [2020-09-17 01:29:23,826 INFO L226 Difference]: Without dead ends: 85 [2020-09-17 01:29:23,827 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-17 01:29:23,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-09-17 01:29:23,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-09-17 01:29:23,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-17 01:29:23,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 177 transitions. [2020-09-17 01:29:23,833 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 177 transitions. Word has length 18 [2020-09-17 01:29:23,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:29:23,833 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 177 transitions. [2020-09-17 01:29:23,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:29:23,833 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 177 transitions. [2020-09-17 01:29:23,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-17 01:29:23,834 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:29:23,834 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:29:23,835 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-17 01:29:23,835 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:29:23,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:29:23,835 INFO L82 PathProgramCache]: Analyzing trace with hash -739037833, now seen corresponding path program 2 times [2020-09-17 01:29:23,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:29:23,836 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083558207] [2020-09-17 01:29:23,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:29:23,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:29:23,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:29:23,945 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083558207] [2020-09-17 01:29:23,946 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:29:23,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-17 01:29:23,946 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17788747] [2020-09-17 01:29:23,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:29:23,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:29:23,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:29:23,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:29:23,948 INFO L87 Difference]: Start difference. First operand 85 states and 177 transitions. Second operand 5 states. [2020-09-17 01:29:23,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:29:23,989 INFO L93 Difference]: Finished difference Result 99 states and 199 transitions. [2020-09-17 01:29:23,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 01:29:23,990 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-17 01:29:23,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:29:23,990 INFO L225 Difference]: With dead ends: 99 [2020-09-17 01:29:23,991 INFO L226 Difference]: Without dead ends: 37 [2020-09-17 01:29:23,991 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-17 01:29:23,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-09-17 01:29:23,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-09-17 01:29:23,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-09-17 01:29:23,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-09-17 01:29:23,996 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2020-09-17 01:29:23,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:29:23,997 INFO L479 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-09-17 01:29:23,997 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:29:23,997 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-09-17 01:29:23,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-17 01:29:23,998 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:29:23,998 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:29:23,998 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-17 01:29:23,998 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:29:23,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:29:23,999 INFO L82 PathProgramCache]: Analyzing trace with hash 21041593, now seen corresponding path program 3 times [2020-09-17 01:29:23,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:29:23,999 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077211706] [2020-09-17 01:29:24,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:29:24,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:29:24,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:29:24,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077211706] [2020-09-17 01:29:24,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:29:24,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-17 01:29:24,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029975929] [2020-09-17 01:29:24,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:29:24,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:29:24,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:29:24,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:29:24,137 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 5 states. [2020-09-17 01:29:24,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:29:24,173 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-09-17 01:29:24,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 01:29:24,173 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-17 01:29:24,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:29:24,174 INFO L225 Difference]: With dead ends: 36 [2020-09-17 01:29:24,174 INFO L226 Difference]: Without dead ends: 0 [2020-09-17 01:29:24,174 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-17 01:29:24,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-17 01:29:24,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-17 01:29:24,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-17 01:29:24,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-17 01:29:24,175 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-09-17 01:29:24,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:29:24,176 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-17 01:29:24,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:29:24,177 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-17 01:29:24,177 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-17 01:29:24,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-17 01:29:24,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.09 01:29:24 BasicIcfg [2020-09-17 01:29:24,182 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-17 01:29:24,186 INFO L168 Benchmark]: Toolchain (without parser) took 4823.04 ms. Allocated memory was 142.6 MB in the beginning and 243.3 MB in the end (delta: 100.7 MB). Free memory was 104.3 MB in the beginning and 177.2 MB in the end (delta: -72.9 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. [2020-09-17 01:29:24,193 INFO L168 Benchmark]: CDTParser took 1.52 ms. Allocated memory is still 142.6 MB. Free memory was 124.2 MB in the beginning and 123.7 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-09-17 01:29:24,195 INFO L168 Benchmark]: CACSL2BoogieTranslator took 858.43 ms. Allocated memory was 142.6 MB in the beginning and 203.4 MB in the end (delta: 60.8 MB). Free memory was 103.9 MB in the beginning and 157.9 MB in the end (delta: -54.0 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. [2020-09-17 01:29:24,197 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.98 ms. Allocated memory is still 203.4 MB. Free memory was 157.9 MB in the beginning and 156.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2020-09-17 01:29:24,197 INFO L168 Benchmark]: Boogie Preprocessor took 32.19 ms. Allocated memory is still 203.4 MB. Free memory was 156.1 MB in the beginning and 154.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2020-09-17 01:29:24,198 INFO L168 Benchmark]: RCFGBuilder took 516.64 ms. Allocated memory is still 203.4 MB. Free memory was 154.3 MB in the beginning and 131.6 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-09-17 01:29:24,202 INFO L168 Benchmark]: TraceAbstraction took 3341.40 ms. Allocated memory was 203.4 MB in the beginning and 243.3 MB in the end (delta: 39.8 MB). Free memory was 131.6 MB in the beginning and 177.2 MB in the end (delta: -45.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-17 01:29:24,210 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.52 ms. Allocated memory is still 142.6 MB. Free memory was 124.2 MB in the beginning and 123.7 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 858.43 ms. Allocated memory was 142.6 MB in the beginning and 203.4 MB in the end (delta: 60.8 MB). Free memory was 103.9 MB in the beginning and 157.9 MB in the end (delta: -54.0 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 59.98 ms. Allocated memory is still 203.4 MB. Free memory was 157.9 MB in the beginning and 156.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.19 ms. Allocated memory is still 203.4 MB. Free memory was 156.1 MB in the beginning and 154.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 516.64 ms. Allocated memory is still 203.4 MB. Free memory was 154.3 MB in the beginning and 131.6 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3341.40 ms. Allocated memory was 203.4 MB in the beginning and 243.3 MB in the end (delta: 39.8 MB). Free memory was 131.6 MB in the beginning and 177.2 MB in the end (delta: -45.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 79 ProgramPointsBefore, 32 ProgramPointsAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 663 VarBasedMoverChecksPositive, 26 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 2315 CheckedPairsTotal, 57 TotalNumberOfCompositions - 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, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 139 SDtfs, 90 SDslu, 214 SDs, 0 SdLazy, 58 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 3389 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...