/usr/bin/java -Xmx16000000000 -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/safe035_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 15:11:42,554 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 15:11:42,556 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 15:11:42,599 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 15:11:42,599 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 15:11:42,607 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 15:11:42,610 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 15:11:42,615 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 15:11:42,617 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 15:11:42,620 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 15:11:42,621 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 15:11:42,622 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 15:11:42,622 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 15:11:42,625 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 15:11:42,628 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 15:11:42,629 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 15:11:42,631 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 15:11:42,632 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 15:11:42,633 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 15:11:42,642 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 15:11:42,644 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 15:11:42,645 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 15:11:42,646 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 15:11:42,647 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 15:11:42,659 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-11 15:11:42,663 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-11 15:11:42,663 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-11 15:11:42,664 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-11 15:11:42,665 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-11 15:11:42,665 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-11 15:11:42,666 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 15:11:42,670 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 15:11:42,670 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 15:11:42,673 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 15:11:42,674 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 15:11:42,674 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 15:11:42,677 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 15:11:42,677 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 15:11:42,678 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 15:11:42,679 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 15:11:42,679 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 15:11:42,681 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 [2020-10-11 15:11:42,718 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 15:11:42,718 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 15:11:42,720 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 15:11:42,720 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 15:11:42,720 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 15:11:42,720 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 15:11:42,721 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 15:11:42,721 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 15:11:42,721 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 15:11:42,721 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 15:11:42,722 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 15:11:42,722 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 15:11:42,722 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 15:11:42,723 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 15:11:42,723 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 15:11:42,723 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 15:11:42,723 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 15:11:42,724 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 15:11:42,724 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 15:11:42,724 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 15:11:42,725 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 15:11:42,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 15:11:42,725 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 15:11:42,725 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 15:11:42,725 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 15:11:42,726 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 15:11:42,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 15:11:42,726 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-11 15:11:42,726 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-11 15:11:42,726 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 15:11:43,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 15:11:43,062 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 15:11:43,067 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 15:11:43,068 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 15:11:43,070 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 15:11:43,071 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_tso.opt.i [2020-10-11 15:11:43,126 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36d3a82f7/5c06220c1551474bbf7194007e9b8f40/FLAG8a6f9b977 [2020-10-11 15:11:43,593 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 15:11:43,593 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_tso.opt.i [2020-10-11 15:11:43,608 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36d3a82f7/5c06220c1551474bbf7194007e9b8f40/FLAG8a6f9b977 [2020-10-11 15:11:43,895 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36d3a82f7/5c06220c1551474bbf7194007e9b8f40 [2020-10-11 15:11:43,906 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 15:11:43,908 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 15:11:43,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 15:11:43,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 15:11:43,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 15:11:43,914 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:11:43" (1/1) ... [2020-10-11 15:11:43,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d75f09a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:43, skipping insertion in model container [2020-10-11 15:11:43,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:11:43" (1/1) ... [2020-10-11 15:11:43,925 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 15:11:43,970 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 15:11:44,388 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:11:44,399 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 15:11:44,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:11:44,524 INFO L208 MainTranslator]: Completed translation [2020-10-11 15:11:44,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:44 WrapperNode [2020-10-11 15:11:44,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 15:11:44,526 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 15:11:44,526 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 15:11:44,526 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 15:11:44,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:44" (1/1) ... [2020-10-11 15:11:44,552 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:44" (1/1) ... [2020-10-11 15:11:44,575 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 15:11:44,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 15:11:44,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 15:11:44,576 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 15:11:44,585 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:44" (1/1) ... [2020-10-11 15:11:44,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:44" (1/1) ... [2020-10-11 15:11:44,588 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:44" (1/1) ... [2020-10-11 15:11:44,589 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:44" (1/1) ... [2020-10-11 15:11:44,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:44" (1/1) ... [2020-10-11 15:11:44,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:44" (1/1) ... [2020-10-11 15:11:44,600 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:44" (1/1) ... [2020-10-11 15:11:44,603 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 15:11:44,604 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 15:11:44,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 15:11:44,604 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 15:11:44,605 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:44" (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 [2020-10-11 15:11:44,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 15:11:44,669 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 15:11:44,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 15:11:44,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 15:11:44,670 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-11 15:11:44,670 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-11 15:11:44,670 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-11 15:11:44,671 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-11 15:11:44,671 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-11 15:11:44,672 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-11 15:11:44,672 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 15:11:44,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 15:11:44,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 15:11:44,674 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 15:11:45,029 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 15:11:45,029 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-11 15:11:45,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:11:45 BoogieIcfgContainer [2020-10-11 15:11:45,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 15:11:45,033 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 15:11:45,033 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 15:11:45,037 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 15:11:45,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:11:43" (1/3) ... [2020-10-11 15:11:45,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b45d5c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:11:45, skipping insertion in model container [2020-10-11 15:11:45,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:11:44" (2/3) ... [2020-10-11 15:11:45,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b45d5c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:11:45, skipping insertion in model container [2020-10-11 15:11:45,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:11:45" (3/3) ... [2020-10-11 15:11:45,040 INFO L111 eAbstractionObserver]: Analyzing ICFG safe035_tso.opt.i [2020-10-11 15:11:45,051 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-11 15:11:45,052 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 15:11:45,059 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 15:11:45,059 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 15:11:45,088 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,089 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,089 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,089 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,090 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,090 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,090 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,090 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,091 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,091 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,091 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,091 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,092 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,092 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,092 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,093 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,093 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,093 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,097 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,097 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,098 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,098 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,104 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,104 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,105 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,105 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,107 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,108 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,108 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,108 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:11:45,127 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-11 15:11:45,146 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 15:11:45,147 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 15:11:45,147 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 15:11:45,147 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 15:11:45,147 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 15:11:45,147 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 15:11:45,147 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 15:11:45,147 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 15:11:45,159 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 15:11:45,161 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-11 15:11:45,163 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-11 15:11:45,165 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-11 15:11:45,209 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-11 15:11:45,209 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 15:11:45,214 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-11 15:11:45,217 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-11 15:11:46,843 INFO L132 LiptonReduction]: Checked pairs total: 2520 [2020-10-11 15:11:46,843 INFO L134 LiptonReduction]: Total number of compositions: 58 [2020-10-11 15:11:46,853 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2020-10-11 15:11:46,891 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-11 15:11:46,893 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-11 15:11:46,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-11 15:11:46,902 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:11:46,903 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:11:46,904 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:11:46,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:11:46,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1626757645, now seen corresponding path program 1 times [2020-10-11 15:11:46,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:11:46,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562507784] [2020-10-11 15:11:46,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:11:47,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:11:47,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:11:47,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562507784] [2020-10-11 15:11:47,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:11:47,172 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-11 15:11:47,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056234080] [2020-10-11 15:11:47,178 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 15:11:47,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:11:47,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 15:11:47,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:11:47,197 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-11 15:11:47,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:11:47,245 INFO L93 Difference]: Finished difference Result 266 states and 752 transitions. [2020-10-11 15:11:47,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 15:11:47,247 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-11 15:11:47,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:11:47,263 INFO L225 Difference]: With dead ends: 266 [2020-10-11 15:11:47,264 INFO L226 Difference]: Without dead ends: 202 [2020-10-11 15:11:47,265 INFO L673 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 [2020-10-11 15:11:47,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-10-11 15:11:47,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-10-11 15:11:47,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-10-11 15:11:47,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-10-11 15:11:47,336 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 8 [2020-10-11 15:11:47,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:11:47,338 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-10-11 15:11:47,338 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 15:11:47,338 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-10-11 15:11:47,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-11 15:11:47,340 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:11:47,340 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:11:47,341 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 15:11:47,341 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:11:47,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:11:47,341 INFO L82 PathProgramCache]: Analyzing trace with hash -54559497, now seen corresponding path program 1 times [2020-10-11 15:11:47,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:11:47,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637667935] [2020-10-11 15:11:47,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:11:47,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:11:47,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:11:47,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637667935] [2020-10-11 15:11:47,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:11:47,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:11:47,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373613586] [2020-10-11 15:11:47,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 15:11:47,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:11:47,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 15:11:47,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:11:47,437 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-10-11 15:11:47,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:11:47,457 INFO L93 Difference]: Finished difference Result 266 states and 704 transitions. [2020-10-11 15:11:47,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 15:11:47,458 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-11 15:11:47,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:11:47,460 INFO L225 Difference]: With dead ends: 266 [2020-10-11 15:11:47,460 INFO L226 Difference]: Without dead ends: 140 [2020-10-11 15:11:47,461 INFO L673 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 [2020-10-11 15:11:47,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-10-11 15:11:47,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-10-11 15:11:47,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-11 15:11:47,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 362 transitions. [2020-10-11 15:11:47,480 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 362 transitions. Word has length 10 [2020-10-11 15:11:47,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:11:47,480 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 362 transitions. [2020-10-11 15:11:47,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 15:11:47,480 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 362 transitions. [2020-10-11 15:11:47,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-11 15:11:47,482 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:11:47,482 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:11:47,482 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 15:11:47,482 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:11:47,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:11:47,483 INFO L82 PathProgramCache]: Analyzing trace with hash -1691362226, now seen corresponding path program 1 times [2020-10-11 15:11:47,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:11:47,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304014186] [2020-10-11 15:11:47,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:11:47,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:11:47,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:11:47,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304014186] [2020-10-11 15:11:47,583 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:11:47,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:11:47,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046369627] [2020-10-11 15:11:47,584 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:11:47,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:11:47,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:11:47,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:11:47,585 INFO L87 Difference]: Start difference. First operand 140 states and 362 transitions. Second operand 4 states. [2020-10-11 15:11:47,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:11:47,635 INFO L93 Difference]: Finished difference Result 165 states and 389 transitions. [2020-10-11 15:11:47,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:11:47,636 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-11 15:11:47,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:11:47,637 INFO L225 Difference]: With dead ends: 165 [2020-10-11 15:11:47,638 INFO L226 Difference]: Without dead ends: 113 [2020-10-11 15:11:47,638 INFO L673 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 [2020-10-11 15:11:47,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-10-11 15:11:47,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2020-10-11 15:11:47,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-10-11 15:11:47,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 257 transitions. [2020-10-11 15:11:47,648 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 257 transitions. Word has length 11 [2020-10-11 15:11:47,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:11:47,649 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 257 transitions. [2020-10-11 15:11:47,649 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:11:47,649 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 257 transitions. [2020-10-11 15:11:47,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-11 15:11:47,650 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:11:47,650 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:11:47,650 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 15:11:47,651 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:11:47,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:11:47,651 INFO L82 PathProgramCache]: Analyzing trace with hash -891715752, now seen corresponding path program 1 times [2020-10-11 15:11:47,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:11:47,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618757896] [2020-10-11 15:11:47,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:11:47,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:11:47,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:11:47,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618757896] [2020-10-11 15:11:47,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:11:47,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:11:47,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023977489] [2020-10-11 15:11:47,757 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:11:47,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:11:47,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:11:47,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:11:47,761 INFO L87 Difference]: Start difference. First operand 113 states and 257 transitions. Second operand 5 states. [2020-10-11 15:11:47,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:11:47,808 INFO L93 Difference]: Finished difference Result 111 states and 232 transitions. [2020-10-11 15:11:47,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 15:11:47,809 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-11 15:11:47,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:11:47,810 INFO L225 Difference]: With dead ends: 111 [2020-10-11 15:11:47,810 INFO L226 Difference]: Without dead ends: 80 [2020-10-11 15:11:47,811 INFO L673 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 [2020-10-11 15:11:47,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-11 15:11:47,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-10-11 15:11:47,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-11 15:11:47,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 159 transitions. [2020-10-11 15:11:47,817 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 159 transitions. Word has length 12 [2020-10-11 15:11:47,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:11:47,818 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 159 transitions. [2020-10-11 15:11:47,818 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:11:47,818 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 159 transitions. [2020-10-11 15:11:47,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-11 15:11:47,819 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:11:47,819 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:11:47,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 15:11:47,820 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:11:47,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:11:47,820 INFO L82 PathProgramCache]: Analyzing trace with hash 2053094164, now seen corresponding path program 1 times [2020-10-11 15:11:47,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:11:47,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596780094] [2020-10-11 15:11:47,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:11:47,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:11:47,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:11:47,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596780094] [2020-10-11 15:11:47,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:11:47,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-11 15:11:47,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135624598] [2020-10-11 15:11:47,929 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 15:11:47,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:11:47,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 15:11:47,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-11 15:11:47,930 INFO L87 Difference]: Start difference. First operand 80 states and 159 transitions. Second operand 6 states. [2020-10-11 15:11:47,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:11:47,994 INFO L93 Difference]: Finished difference Result 75 states and 147 transitions. [2020-10-11 15:11:47,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 15:11:47,994 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-11 15:11:47,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:11:47,995 INFO L225 Difference]: With dead ends: 75 [2020-10-11 15:11:47,995 INFO L226 Difference]: Without dead ends: 66 [2020-10-11 15:11:47,996 INFO L673 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 [2020-10-11 15:11:47,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-11 15:11:47,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-10-11 15:11:47,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-11 15:11:48,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 131 transitions. [2020-10-11 15:11:48,000 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 131 transitions. Word has length 14 [2020-10-11 15:11:48,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:11:48,000 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 131 transitions. [2020-10-11 15:11:48,001 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 15:11:48,001 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 131 transitions. [2020-10-11 15:11:48,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-11 15:11:48,002 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:11:48,002 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:11:48,002 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 15:11:48,002 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:11:48,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:11:48,003 INFO L82 PathProgramCache]: Analyzing trace with hash -913032564, now seen corresponding path program 1 times [2020-10-11 15:11:48,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:11:48,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196295215] [2020-10-11 15:11:48,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:11:48,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:11:48,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:11:48,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196295215] [2020-10-11 15:11:48,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:11:48,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:11:48,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313070421] [2020-10-11 15:11:48,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:11:48,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:11:48,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:11:48,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:11:48,040 INFO L87 Difference]: Start difference. First operand 66 states and 131 transitions. Second operand 4 states. [2020-10-11 15:11:48,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:11:48,061 INFO L93 Difference]: Finished difference Result 85 states and 165 transitions. [2020-10-11 15:11:48,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 15:11:48,062 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-11 15:11:48,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:11:48,063 INFO L225 Difference]: With dead ends: 85 [2020-10-11 15:11:48,063 INFO L226 Difference]: Without dead ends: 48 [2020-10-11 15:11:48,063 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:11:48,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-11 15:11:48,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-11 15:11:48,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-11 15:11:48,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 83 transitions. [2020-10-11 15:11:48,066 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 83 transitions. Word has length 17 [2020-10-11 15:11:48,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:11:48,067 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 83 transitions. [2020-10-11 15:11:48,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:11:48,067 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 83 transitions. [2020-10-11 15:11:48,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-11 15:11:48,068 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:11:48,068 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:11:48,068 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 15:11:48,068 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:11:48,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:11:48,069 INFO L82 PathProgramCache]: Analyzing trace with hash -1376526520, now seen corresponding path program 2 times [2020-10-11 15:11:48,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:11:48,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504034703] [2020-10-11 15:11:48,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:11:48,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:11:48,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:11:48,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504034703] [2020-10-11 15:11:48,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:11:48,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:11:48,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843819352] [2020-10-11 15:11:48,103 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:11:48,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:11:48,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:11:48,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:11:48,104 INFO L87 Difference]: Start difference. First operand 48 states and 83 transitions. Second operand 4 states. [2020-10-11 15:11:48,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:11:48,124 INFO L93 Difference]: Finished difference Result 73 states and 130 transitions. [2020-10-11 15:11:48,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:11:48,124 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-11 15:11:48,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:11:48,125 INFO L225 Difference]: With dead ends: 73 [2020-10-11 15:11:48,125 INFO L226 Difference]: Without dead ends: 42 [2020-10-11 15:11:48,125 INFO L673 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 [2020-10-11 15:11:48,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-11 15:11:48,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-11 15:11:48,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-11 15:11:48,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 71 transitions. [2020-10-11 15:11:48,128 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 71 transitions. Word has length 17 [2020-10-11 15:11:48,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:11:48,128 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 71 transitions. [2020-10-11 15:11:48,128 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:11:48,129 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 71 transitions. [2020-10-11 15:11:48,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-11 15:11:48,129 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:11:48,130 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:11:48,130 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-11 15:11:48,130 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:11:48,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:11:48,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1323635892, now seen corresponding path program 3 times [2020-10-11 15:11:48,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:11:48,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970548473] [2020-10-11 15:11:48,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:11:48,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:11:48,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:11:48,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970548473] [2020-10-11 15:11:48,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:11:48,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:11:48,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590612948] [2020-10-11 15:11:48,165 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:11:48,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:11:48,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:11:48,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:11:48,165 INFO L87 Difference]: Start difference. First operand 42 states and 71 transitions. Second operand 4 states. [2020-10-11 15:11:48,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:11:48,197 INFO L93 Difference]: Finished difference Result 41 states and 70 transitions. [2020-10-11 15:11:48,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 15:11:48,198 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-11 15:11:48,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:11:48,199 INFO L225 Difference]: With dead ends: 41 [2020-10-11 15:11:48,199 INFO L226 Difference]: Without dead ends: 0 [2020-10-11 15:11:48,199 INFO L673 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 [2020-10-11 15:11:48,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-11 15:11:48,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-11 15:11:48,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-11 15:11:48,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-11 15:11:48,200 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-11 15:11:48,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:11:48,200 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-11 15:11:48,200 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:11:48,200 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-11 15:11:48,200 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-11 15:11:48,201 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-11 15:11:48,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 03:11:48 BasicIcfg [2020-10-11 15:11:48,204 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 15:11:48,206 INFO L168 Benchmark]: Toolchain (without parser) took 4297.62 ms. Allocated memory was 253.8 MB in the beginning and 372.8 MB in the end (delta: 119.0 MB). Free memory was 208.9 MB in the beginning and 237.2 MB in the end (delta: -28.3 MB). Peak memory consumption was 90.8 MB. Max. memory is 14.2 GB. [2020-10-11 15:11:48,207 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 253.8 MB. Free memory is still 230.1 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 15:11:48,208 INFO L168 Benchmark]: CACSL2BoogieTranslator took 616.48 ms. Allocated memory was 253.8 MB in the beginning and 321.4 MB in the end (delta: 67.6 MB). Free memory was 208.9 MB in the beginning and 275.3 MB in the end (delta: -66.4 MB). Peak memory consumption was 29.6 MB. Max. memory is 14.2 GB. [2020-10-11 15:11:48,209 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.78 ms. Allocated memory is still 321.4 MB. Free memory was 275.3 MB in the beginning and 272.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 14.2 GB. [2020-10-11 15:11:48,209 INFO L168 Benchmark]: Boogie Preprocessor took 27.24 ms. Allocated memory is still 321.4 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 15:11:48,210 INFO L168 Benchmark]: RCFGBuilder took 428.49 ms. Allocated memory is still 321.4 MB. Free memory was 269.6 MB in the beginning and 247.8 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. [2020-10-11 15:11:48,211 INFO L168 Benchmark]: TraceAbstraction took 3170.60 ms. Allocated memory was 321.4 MB in the beginning and 372.8 MB in the end (delta: 51.4 MB). Free memory was 247.8 MB in the beginning and 237.2 MB in the end (delta: 10.6 MB). Peak memory consumption was 62.0 MB. Max. memory is 14.2 GB. [2020-10-11 15:11:48,215 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 253.8 MB. Free memory is still 230.1 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 616.48 ms. Allocated memory was 253.8 MB in the beginning and 321.4 MB in the end (delta: 67.6 MB). Free memory was 208.9 MB in the beginning and 275.3 MB in the end (delta: -66.4 MB). Peak memory consumption was 29.6 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 49.78 ms. Allocated memory is still 321.4 MB. Free memory was 275.3 MB in the beginning and 272.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 27.24 ms. Allocated memory is still 321.4 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 14.2 GB. * RCFGBuilder took 428.49 ms. Allocated memory is still 321.4 MB. Free memory was 269.6 MB in the beginning and 247.8 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3170.60 ms. Allocated memory was 321.4 MB in the beginning and 372.8 MB in the end (delta: 51.4 MB). Free memory was 247.8 MB in the beginning and 237.2 MB in the end (delta: 10.6 MB). Peak memory consumption was 62.0 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 837 VarBasedMoverChecksPositive, 42 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 34 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 63 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.6s, 78 PlacesBefore, 31 PlacesAfterwards, 70 TransitionsBefore, 21 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 58 TotalNumberOfCompositions, 2520 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, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.0s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 156 SDtfs, 123 SDslu, 193 SDs, 0 SdLazy, 117 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 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: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 3220 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...