/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/safe015_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 11:19:13,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 11:19:13,719 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 11:19:13,758 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 11:19:13,758 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 11:19:13,766 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 11:19:13,769 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 11:19:13,773 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 11:19:13,776 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 11:19:13,780 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 11:19:13,781 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 11:19:13,782 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 11:19:13,782 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 11:19:13,785 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 11:19:13,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 11:19:13,789 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 11:19:13,790 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 11:19:13,792 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 11:19:13,794 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 11:19:13,800 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 11:19:13,802 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 11:19:13,803 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 11:19:13,804 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 11:19:13,805 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 11:19:13,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 11:19:13,818 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 11:19:13,818 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 11:19:13,819 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 11:19:13,821 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 11:19:13,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 11:19:13,822 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 11:19:13,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 11:19:13,824 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 11:19:13,828 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 11:19:13,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 11:19:13,829 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 11:19:13,829 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 11:19:13,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 11:19:13,830 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 11:19:13,834 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 11:19:13,835 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 11:19:13,839 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-16 11:19:13,876 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 11:19:13,876 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 11:19:13,879 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 11:19:13,879 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 11:19:13,879 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 11:19:13,880 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 11:19:13,880 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 11:19:13,880 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 11:19:13,880 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 11:19:13,880 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 11:19:13,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 11:19:13,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 11:19:13,882 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 11:19:13,882 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 11:19:13,883 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 11:19:13,883 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 11:19:13,883 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 11:19:13,884 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 11:19:13,884 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 11:19:13,884 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 11:19:13,884 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 11:19:13,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:19:13,885 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 11:19:13,885 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 11:19:13,886 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 11:19:13,886 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 11:19:13,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 11:19:13,886 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 11:19:13,886 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-16 11:19:13,886 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 11:19:14,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 11:19:14,199 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 11:19:14,202 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 11:19:14,204 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 11:19:14,204 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 11:19:14,205 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc.i [2020-10-16 11:19:14,278 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dddd0a438/deac67dbb6ab4e60981e285193941584/FLAG7761447a2 [2020-10-16 11:19:14,769 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 11:19:14,770 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe015_pso.oepc.i [2020-10-16 11:19:14,786 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dddd0a438/deac67dbb6ab4e60981e285193941584/FLAG7761447a2 [2020-10-16 11:19:15,082 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dddd0a438/deac67dbb6ab4e60981e285193941584 [2020-10-16 11:19:15,093 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 11:19:15,095 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 11:19:15,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 11:19:15,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 11:19:15,100 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 11:19:15,101 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:19:15" (1/1) ... [2020-10-16 11:19:15,106 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@222302d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:19:15, skipping insertion in model container [2020-10-16 11:19:15,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:19:15" (1/1) ... [2020-10-16 11:19:15,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 11:19:15,160 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 11:19:15,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:19:15,718 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 11:19:15,796 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 11:19:15,869 INFO L208 MainTranslator]: Completed translation [2020-10-16 11:19:15,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:19:15 WrapperNode [2020-10-16 11:19:15,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 11:19:15,871 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 11:19:15,871 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 11:19:15,871 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 11:19:15,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:19:15" (1/1) ... [2020-10-16 11:19:15,897 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:19:15" (1/1) ... [2020-10-16 11:19:15,921 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 11:19:15,921 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 11:19:15,921 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 11:19:15,921 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 11:19:15,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:19:15" (1/1) ... [2020-10-16 11:19:15,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:19:15" (1/1) ... [2020-10-16 11:19:15,932 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:19:15" (1/1) ... [2020-10-16 11:19:15,933 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:19:15" (1/1) ... [2020-10-16 11:19:15,939 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:19:15" (1/1) ... [2020-10-16 11:19:15,942 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:19:15" (1/1) ... [2020-10-16 11:19:15,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:19:15" (1/1) ... [2020-10-16 11:19:15,947 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 11:19:15,948 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 11:19:15,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 11:19:15,948 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 11:19:15,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:19:15" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 11:19:16,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 11:19:16,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 11:19:16,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 11:19:16,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 11:19:16,019 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 11:19:16,019 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 11:19:16,019 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 11:19:16,020 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 11:19:16,020 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 11:19:16,020 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 11:19:16,020 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 11:19:16,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 11:19:16,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 11:19:16,022 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 11:19:16,410 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 11:19:16,410 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 11:19:16,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:19:16 BoogieIcfgContainer [2020-10-16 11:19:16,413 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 11:19:16,414 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 11:19:16,415 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 11:19:16,418 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 11:19:16,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:19:15" (1/3) ... [2020-10-16 11:19:16,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@104ded48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:19:16, skipping insertion in model container [2020-10-16 11:19:16,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:19:15" (2/3) ... [2020-10-16 11:19:16,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@104ded48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:19:16, skipping insertion in model container [2020-10-16 11:19:16,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:19:16" (3/3) ... [2020-10-16 11:19:16,422 INFO L111 eAbstractionObserver]: Analyzing ICFG safe015_pso.oepc.i [2020-10-16 11:19:16,440 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 11:19:16,440 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 11:19:16,449 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 11:19:16,450 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 11:19:16,476 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:16,477 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:16,477 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:16,478 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:16,478 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:16,478 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:16,479 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:16,479 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:16,479 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:16,480 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:16,480 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:16,480 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:16,481 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:16,481 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:16,481 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:16,481 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:16,482 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:16,482 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:16,486 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:16,486 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:16,487 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:16,487 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:16,495 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:16,495 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:16,496 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:16,496 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:16,498 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:16,499 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:16,499 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:16,499 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 11:19:16,501 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 11:19:16,515 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 11:19:16,533 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 11:19:16,533 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 11:19:16,533 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 11:19:16,533 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 11:19:16,534 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 11:19:16,534 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 11:19:16,534 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 11:19:16,534 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 11:19:16,546 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 11:19:16,548 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-16 11:19:16,550 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 69 transitions, 153 flow [2020-10-16 11:19:16,551 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-16 11:19:16,591 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-16 11:19:16,591 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 11:19:16,596 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-16 11:19:16,599 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-16 11:19:18,158 INFO L132 LiptonReduction]: Checked pairs total: 2962 [2020-10-16 11:19:18,158 INFO L134 LiptonReduction]: Total number of compositions: 59 [2020-10-16 11:19:18,165 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-16 11:19:18,192 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-16 11:19:18,194 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-16 11:19:18,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 11:19:18,203 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:19:18,204 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:19:18,204 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:19:18,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:19:18,210 INFO L82 PathProgramCache]: Analyzing trace with hash -2122060928, now seen corresponding path program 1 times [2020-10-16 11:19:18,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:19:18,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914354909] [2020-10-16 11:19:18,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:19:18,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:19:18,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:19:18,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914354909] [2020-10-16 11:19:18,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:19:18,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 11:19:18,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533138922] [2020-10-16 11:19:18,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:19:18,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:19:18,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:19:18,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:19:18,472 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-16 11:19:18,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:19:18,527 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-10-16 11:19:18,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:19:18,532 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-16 11:19:18,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:19:18,549 INFO L225 Difference]: With dead ends: 282 [2020-10-16 11:19:18,549 INFO L226 Difference]: Without dead ends: 218 [2020-10-16 11:19:18,551 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:19:18,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-16 11:19:18,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-10-16 11:19:18,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-16 11:19:18,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-10-16 11:19:18,628 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-10-16 11:19:18,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:19:18,629 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-10-16 11:19:18,629 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:19:18,630 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-10-16 11:19:18,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 11:19:18,631 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:19:18,631 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:19:18,632 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 11:19:18,632 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:19:18,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:19:18,632 INFO L82 PathProgramCache]: Analyzing trace with hash -1372085576, now seen corresponding path program 1 times [2020-10-16 11:19:18,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:19:18,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646933920] [2020-10-16 11:19:18,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:19:18,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:19:18,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:19:18,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646933920] [2020-10-16 11:19:18,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:19:18,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:19:18,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384016982] [2020-10-16 11:19:18,714 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:19:18,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:19:18,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:19:18,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:19:18,715 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 3 states. [2020-10-16 11:19:18,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:19:18,731 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-10-16 11:19:18,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:19:18,732 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-16 11:19:18,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:19:18,735 INFO L225 Difference]: With dead ends: 202 [2020-10-16 11:19:18,735 INFO L226 Difference]: Without dead ends: 202 [2020-10-16 11:19:18,736 INFO L677 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 [2020-10-16 11:19:18,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-16 11:19:18,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-10-16 11:19:18,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-10-16 11:19:18,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-10-16 11:19:18,753 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 9 [2020-10-16 11:19:18,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:19:18,753 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-10-16 11:19:18,753 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:19:18,753 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-10-16 11:19:18,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-16 11:19:18,755 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:19:18,755 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:19:18,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 11:19:18,755 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:19:18,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:19:18,756 INFO L82 PathProgramCache]: Analyzing trace with hash 365373016, now seen corresponding path program 1 times [2020-10-16 11:19:18,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:19:18,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807582612] [2020-10-16 11:19:18,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:19:18,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:19:18,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:19:18,801 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807582612] [2020-10-16 11:19:18,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:19:18,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 11:19:18,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554106962] [2020-10-16 11:19:18,802 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:19:18,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:19:18,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:19:18,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:19:18,803 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-10-16 11:19:18,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:19:18,811 INFO L93 Difference]: Finished difference Result 198 states and 530 transitions. [2020-10-16 11:19:18,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:19:18,812 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-16 11:19:18,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:19:18,814 INFO L225 Difference]: With dead ends: 198 [2020-10-16 11:19:18,814 INFO L226 Difference]: Without dead ends: 198 [2020-10-16 11:19:18,815 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:19:18,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-10-16 11:19:18,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2020-10-16 11:19:18,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-10-16 11:19:18,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 530 transitions. [2020-10-16 11:19:18,830 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 530 transitions. Word has length 10 [2020-10-16 11:19:18,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:19:18,830 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 530 transitions. [2020-10-16 11:19:18,830 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:19:18,830 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 530 transitions. [2020-10-16 11:19:18,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 11:19:18,832 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:19:18,832 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:19:18,832 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 11:19:18,833 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:19:18,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:19:18,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1571968161, now seen corresponding path program 1 times [2020-10-16 11:19:18,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:19:18,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383957180] [2020-10-16 11:19:18,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:19:18,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:19:18,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:19:18,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383957180] [2020-10-16 11:19:18,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:19:18,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 11:19:18,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028150003] [2020-10-16 11:19:18,905 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:19:18,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:19:18,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:19:18,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:19:18,906 INFO L87 Difference]: Start difference. First operand 198 states and 530 transitions. Second operand 3 states. [2020-10-16 11:19:18,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:19:18,913 INFO L93 Difference]: Finished difference Result 192 states and 511 transitions. [2020-10-16 11:19:18,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:19:18,913 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-16 11:19:18,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:19:18,915 INFO L225 Difference]: With dead ends: 192 [2020-10-16 11:19:18,916 INFO L226 Difference]: Without dead ends: 192 [2020-10-16 11:19:18,916 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:19:18,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-10-16 11:19:18,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2020-10-16 11:19:18,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-10-16 11:19:18,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 511 transitions. [2020-10-16 11:19:18,930 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 511 transitions. Word has length 11 [2020-10-16 11:19:18,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:19:18,930 INFO L481 AbstractCegarLoop]: Abstraction has 192 states and 511 transitions. [2020-10-16 11:19:18,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:19:18,931 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 511 transitions. [2020-10-16 11:19:18,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 11:19:18,933 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:19:18,933 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:19:18,933 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 11:19:18,933 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:19:18,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:19:18,934 INFO L82 PathProgramCache]: Analyzing trace with hash -1486373385, now seen corresponding path program 1 times [2020-10-16 11:19:18,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:19:18,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797365182] [2020-10-16 11:19:18,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:19:18,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:19:19,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:19:19,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797365182] [2020-10-16 11:19:19,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:19:19,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:19:19,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260996150] [2020-10-16 11:19:19,019 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:19:19,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:19:19,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:19:19,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:19:19,020 INFO L87 Difference]: Start difference. First operand 192 states and 511 transitions. Second operand 4 states. [2020-10-16 11:19:19,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:19:19,083 INFO L93 Difference]: Finished difference Result 224 states and 554 transitions. [2020-10-16 11:19:19,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:19:19,084 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-16 11:19:19,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:19:19,085 INFO L225 Difference]: With dead ends: 224 [2020-10-16 11:19:19,086 INFO L226 Difference]: Without dead ends: 160 [2020-10-16 11:19:19,086 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:19:19,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-10-16 11:19:19,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2020-10-16 11:19:19,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2020-10-16 11:19:19,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 383 transitions. [2020-10-16 11:19:19,099 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 383 transitions. Word has length 12 [2020-10-16 11:19:19,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:19:19,099 INFO L481 AbstractCegarLoop]: Abstraction has 160 states and 383 transitions. [2020-10-16 11:19:19,099 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:19:19,099 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 383 transitions. [2020-10-16 11:19:19,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-16 11:19:19,101 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:19:19,101 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:19:19,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 11:19:19,102 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:19:19,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:19:19,102 INFO L82 PathProgramCache]: Analyzing trace with hash 887113091, now seen corresponding path program 1 times [2020-10-16 11:19:19,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:19:19,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146976727] [2020-10-16 11:19:19,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:19:19,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:19:19,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:19:19,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146976727] [2020-10-16 11:19:19,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:19:19,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:19:19,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873250606] [2020-10-16 11:19:19,167 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 11:19:19,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:19:19,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 11:19:19,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:19:19,168 INFO L87 Difference]: Start difference. First operand 160 states and 383 transitions. Second operand 5 states. [2020-10-16 11:19:19,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:19:19,218 INFO L93 Difference]: Finished difference Result 160 states and 362 transitions. [2020-10-16 11:19:19,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 11:19:19,218 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-16 11:19:19,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:19:19,220 INFO L225 Difference]: With dead ends: 160 [2020-10-16 11:19:19,220 INFO L226 Difference]: Without dead ends: 123 [2020-10-16 11:19:19,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 11:19:19,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-10-16 11:19:19,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2020-10-16 11:19:19,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-10-16 11:19:19,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 272 transitions. [2020-10-16 11:19:19,227 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 272 transitions. Word has length 13 [2020-10-16 11:19:19,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:19:19,228 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 272 transitions. [2020-10-16 11:19:19,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 11:19:19,228 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 272 transitions. [2020-10-16 11:19:19,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-16 11:19:19,229 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:19:19,230 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:19:19,230 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 11:19:19,230 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:19:19,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:19:19,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1920279248, now seen corresponding path program 1 times [2020-10-16 11:19:19,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:19:19,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575385007] [2020-10-16 11:19:19,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:19:19,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:19:19,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:19:19,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575385007] [2020-10-16 11:19:19,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:19:19,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:19:19,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177764192] [2020-10-16 11:19:19,288 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 11:19:19,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:19:19,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 11:19:19,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 11:19:19,289 INFO L87 Difference]: Start difference. First operand 123 states and 272 transitions. Second operand 3 states. [2020-10-16 11:19:19,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:19:19,304 INFO L93 Difference]: Finished difference Result 155 states and 330 transitions. [2020-10-16 11:19:19,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 11:19:19,305 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-16 11:19:19,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:19:19,307 INFO L225 Difference]: With dead ends: 155 [2020-10-16 11:19:19,307 INFO L226 Difference]: Without dead ends: 124 [2020-10-16 11:19:19,308 INFO L677 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 [2020-10-16 11:19:19,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-16 11:19:19,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 122. [2020-10-16 11:19:19,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-16 11:19:19,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 257 transitions. [2020-10-16 11:19:19,314 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 257 transitions. Word has length 14 [2020-10-16 11:19:19,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:19:19,315 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 257 transitions. [2020-10-16 11:19:19,315 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 11:19:19,315 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 257 transitions. [2020-10-16 11:19:19,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 11:19:19,318 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:19:19,318 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:19:19,318 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 11:19:19,319 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:19:19,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:19:19,319 INFO L82 PathProgramCache]: Analyzing trace with hash 451653261, now seen corresponding path program 1 times [2020-10-16 11:19:19,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:19:19,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144979514] [2020-10-16 11:19:19,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:19:19,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:19:19,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:19:19,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144979514] [2020-10-16 11:19:19,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:19:19,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:19:19,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413197179] [2020-10-16 11:19:19,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:19:19,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:19:19,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:19:19,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:19:19,390 INFO L87 Difference]: Start difference. First operand 122 states and 257 transitions. Second operand 4 states. [2020-10-16 11:19:19,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:19:19,421 INFO L93 Difference]: Finished difference Result 154 states and 308 transitions. [2020-10-16 11:19:19,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:19:19,421 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-16 11:19:19,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:19:19,422 INFO L225 Difference]: With dead ends: 154 [2020-10-16 11:19:19,423 INFO L226 Difference]: Without dead ends: 116 [2020-10-16 11:19:19,423 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:19:19,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-16 11:19:19,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2020-10-16 11:19:19,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-16 11:19:19,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 222 transitions. [2020-10-16 11:19:19,427 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 222 transitions. Word has length 15 [2020-10-16 11:19:19,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:19:19,427 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 222 transitions. [2020-10-16 11:19:19,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:19:19,428 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 222 transitions. [2020-10-16 11:19:19,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-16 11:19:19,432 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:19:19,432 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:19:19,432 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 11:19:19,433 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:19:19,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:19:19,433 INFO L82 PathProgramCache]: Analyzing trace with hash -600886075, now seen corresponding path program 1 times [2020-10-16 11:19:19,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:19:19,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529885964] [2020-10-16 11:19:19,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:19:19,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:19:19,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:19:19,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529885964] [2020-10-16 11:19:19,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:19:19,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 11:19:19,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349337299] [2020-10-16 11:19:19,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 11:19:19,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:19:19,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 11:19:19,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 11:19:19,500 INFO L87 Difference]: Start difference. First operand 114 states and 222 transitions. Second operand 6 states. [2020-10-16 11:19:19,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:19:19,550 INFO L93 Difference]: Finished difference Result 110 states and 212 transitions. [2020-10-16 11:19:19,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 11:19:19,551 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-16 11:19:19,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:19:19,551 INFO L225 Difference]: With dead ends: 110 [2020-10-16 11:19:19,551 INFO L226 Difference]: Without dead ends: 38 [2020-10-16 11:19:19,552 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-16 11:19:19,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-16 11:19:19,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-16 11:19:19,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-16 11:19:19,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 62 transitions. [2020-10-16 11:19:19,554 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 62 transitions. Word has length 15 [2020-10-16 11:19:19,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:19:19,554 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 62 transitions. [2020-10-16 11:19:19,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 11:19:19,555 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2020-10-16 11:19:19,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 11:19:19,555 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:19:19,555 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:19:19,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-16 11:19:19,556 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:19:19,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:19:19,556 INFO L82 PathProgramCache]: Analyzing trace with hash 13395029, now seen corresponding path program 1 times [2020-10-16 11:19:19,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:19:19,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841656413] [2020-10-16 11:19:19,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:19:19,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:19:19,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:19:19,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841656413] [2020-10-16 11:19:19,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:19:19,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 11:19:19,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9979264] [2020-10-16 11:19:19,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:19:19,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:19:19,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:19:19,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:19:19,606 INFO L87 Difference]: Start difference. First operand 38 states and 62 transitions. Second operand 4 states. [2020-10-16 11:19:19,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:19:19,628 INFO L93 Difference]: Finished difference Result 51 states and 83 transitions. [2020-10-16 11:19:19,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 11:19:19,629 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-16 11:19:19,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:19:19,629 INFO L225 Difference]: With dead ends: 51 [2020-10-16 11:19:19,630 INFO L226 Difference]: Without dead ends: 30 [2020-10-16 11:19:19,630 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:19:19,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-16 11:19:19,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-16 11:19:19,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-16 11:19:19,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-10-16 11:19:19,634 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-10-16 11:19:19,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:19:19,635 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-10-16 11:19:19,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:19:19,635 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-10-16 11:19:19,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-16 11:19:19,635 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 11:19:19,635 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 11:19:19,636 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-16 11:19:19,636 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 11:19:19,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 11:19:19,636 INFO L82 PathProgramCache]: Analyzing trace with hash -34011261, now seen corresponding path program 2 times [2020-10-16 11:19:19,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 11:19:19,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285843610] [2020-10-16 11:19:19,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 11:19:19,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 11:19:19,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 11:19:19,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285843610] [2020-10-16 11:19:19,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 11:19:19,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 11:19:19,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935540106] [2020-10-16 11:19:19,695 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 11:19:19,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 11:19:19,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 11:19:19,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 11:19:19,697 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 4 states. [2020-10-16 11:19:19,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 11:19:19,711 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-10-16 11:19:19,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 11:19:19,714 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-16 11:19:19,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 11:19:19,714 INFO L225 Difference]: With dead ends: 29 [2020-10-16 11:19:19,714 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 11:19:19,715 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 11:19:19,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 11:19:19,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 11:19:19,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 11:19:19,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 11:19:19,716 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-16 11:19:19,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 11:19:19,716 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 11:19:19,716 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 11:19:19,716 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 11:19:19,717 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 11:19:19,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-16 11:19:19,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:19:19 BasicIcfg [2020-10-16 11:19:19,723 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 11:19:19,726 INFO L168 Benchmark]: Toolchain (without parser) took 4630.13 ms. Allocated memory was 140.5 MB in the beginning and 246.9 MB in the end (delta: 106.4 MB). Free memory was 101.2 MB in the beginning and 133.3 MB in the end (delta: -32.0 MB). Peak memory consumption was 74.4 MB. Max. memory is 7.1 GB. [2020-10-16 11:19:19,727 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 11:19:19,733 INFO L168 Benchmark]: CACSL2BoogieTranslator took 774.09 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 101.0 MB in the beginning and 162.6 MB in the end (delta: -61.5 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2020-10-16 11:19:19,735 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.11 ms. Allocated memory is still 203.9 MB. Free memory was 161.9 MB in the beginning and 160.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 11:19:19,736 INFO L168 Benchmark]: Boogie Preprocessor took 26.49 ms. Allocated memory is still 203.9 MB. Free memory was 160.0 MB in the beginning and 158.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-16 11:19:19,737 INFO L168 Benchmark]: RCFGBuilder took 464.83 ms. Allocated memory is still 203.9 MB. Free memory was 158.7 MB in the beginning and 136.4 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-10-16 11:19:19,743 INFO L168 Benchmark]: TraceAbstraction took 3308.46 ms. Allocated memory was 203.9 MB in the beginning and 246.9 MB in the end (delta: 43.0 MB). Free memory was 135.8 MB in the beginning and 133.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 45.5 MB. Max. memory is 7.1 GB. [2020-10-16 11:19:19,749 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 774.09 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 101.0 MB in the beginning and 162.6 MB in the end (delta: -61.5 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.11 ms. Allocated memory is still 203.9 MB. Free memory was 161.9 MB in the beginning and 160.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.49 ms. Allocated memory is still 203.9 MB. Free memory was 160.0 MB in the beginning and 158.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 464.83 ms. Allocated memory is still 203.9 MB. Free memory was 158.7 MB in the beginning and 136.4 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3308.46 ms. Allocated memory was 203.9 MB in the beginning and 246.9 MB in the end (delta: 43.0 MB). Free memory was 135.8 MB in the beginning and 133.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 45.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 824 VarBasedMoverChecksPositive, 47 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 58 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.6s, 77 PlacesBefore, 31 PlacesAfterwards, 69 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 59 TotalNumberOfCompositions, 2962 MoverChecksTotal - 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: 3.1s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 216 SDtfs, 131 SDslu, 232 SDs, 0 SdLazy, 130 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 11 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 130 ConstructedInterpolants, 0 QuantifiedInterpolants, 4600 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...