/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/safe013_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 22:01:29,421 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 22:01:29,424 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 22:01:29,465 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 22:01:29,466 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 22:01:29,473 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 22:01:29,476 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 22:01:29,480 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 22:01:29,482 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 22:01:29,486 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 22:01:29,487 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 22:01:29,488 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 22:01:29,488 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 22:01:29,491 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 22:01:29,494 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 22:01:29,495 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 22:01:29,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 22:01:29,498 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 22:01:29,499 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 22:01:29,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 22:01:29,509 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 22:01:29,510 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 22:01:29,511 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 22:01:29,512 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 22:01:29,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-21 22:01:29,535 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 22:01:29,536 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 22:01:29,537 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 22:01:29,538 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 22:01:29,542 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 22:01:29,542 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 22:01:29,542 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 22:01:29,543 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 22:01:29,543 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 22:01:29,545 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 22:01:29,546 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 22:01:29,547 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 [2020-10-21 22:01:29,585 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 22:01:29,585 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 22:01:29,588 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 22:01:29,588 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 22:01:29,588 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 22:01:29,588 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 22:01:29,589 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 22:01:29,589 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 22:01:29,589 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 22:01:29,590 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 22:01:29,591 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 22:01:29,591 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 22:01:29,591 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 22:01:29,591 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 22:01:29,592 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 22:01:29,592 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 22:01:29,592 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 22:01:29,593 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 22:01:29,593 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 22:01:29,593 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 22:01:29,593 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 22:01:29,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 22:01:29,594 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 22:01:29,594 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-21 22:01:29,594 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 22:01:29,594 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 22:01:29,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 22:01:29,595 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 22:01:29,595 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-21 22:01:29,595 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-21 22:01:29,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 22:01:29,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 22:01:29,920 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 22:01:29,921 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 22:01:29,922 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 22:01:29,922 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i [2020-10-21 22:01:29,988 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c91012d8e/a9dc4c5fcaca460c91e6df09526cc133/FLAG9743fa2a0 [2020-10-21 22:01:30,511 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 22:01:30,512 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i [2020-10-21 22:01:30,530 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c91012d8e/a9dc4c5fcaca460c91e6df09526cc133/FLAG9743fa2a0 [2020-10-21 22:01:30,826 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c91012d8e/a9dc4c5fcaca460c91e6df09526cc133 [2020-10-21 22:01:30,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 22:01:30,844 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 22:01:30,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 22:01:30,845 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 22:01:30,849 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 22:01:30,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:01:30" (1/1) ... [2020-10-21 22:01:30,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@344dab00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:30, skipping insertion in model container [2020-10-21 22:01:30,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:01:30" (1/1) ... [2020-10-21 22:01:30,861 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 22:01:30,908 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 22:01:31,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:01:31,353 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 22:01:31,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:01:31,479 INFO L208 MainTranslator]: Completed translation [2020-10-21 22:01:31,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:31 WrapperNode [2020-10-21 22:01:31,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 22:01:31,481 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 22:01:31,481 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 22:01:31,481 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 22:01:31,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:31" (1/1) ... [2020-10-21 22:01:31,506 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:31" (1/1) ... [2020-10-21 22:01:31,530 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 22:01:31,531 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 22:01:31,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 22:01:31,531 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 22:01:31,541 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:31" (1/1) ... [2020-10-21 22:01:31,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:31" (1/1) ... [2020-10-21 22:01:31,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:31" (1/1) ... [2020-10-21 22:01:31,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:31" (1/1) ... [2020-10-21 22:01:31,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:31" (1/1) ... [2020-10-21 22:01:31,553 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:31" (1/1) ... [2020-10-21 22:01:31,555 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:31" (1/1) ... [2020-10-21 22:01:31,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 22:01:31,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 22:01:31,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 22:01:31,559 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 22:01:31,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:31" (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 [2020-10-21 22:01:31,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 22:01:31,634 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-21 22:01:31,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 22:01:31,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 22:01:31,634 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-21 22:01:31,635 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-21 22:01:31,635 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-21 22:01:31,635 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-21 22:01:31,635 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-21 22:01:31,635 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-21 22:01:31,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 22:01:31,636 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-21 22:01:31,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 22:01:31,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 22:01:31,638 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 22:01:32,081 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 22:01:32,081 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-21 22:01:32,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:01:32 BoogieIcfgContainer [2020-10-21 22:01:32,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 22:01:32,086 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 22:01:32,086 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 22:01:32,090 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 22:01:32,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 10:01:30" (1/3) ... [2020-10-21 22:01:32,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29deea6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:01:32, skipping insertion in model container [2020-10-21 22:01:32,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:01:31" (2/3) ... [2020-10-21 22:01:32,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29deea6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:01:32, skipping insertion in model container [2020-10-21 22:01:32,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:01:32" (3/3) ... [2020-10-21 22:01:32,094 INFO L111 eAbstractionObserver]: Analyzing ICFG safe013_tso.oepc.i [2020-10-21 22:01:32,106 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 22:01:32,106 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-21 22:01:32,115 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 22:01:32,116 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 22:01:32,145 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,145 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,145 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,146 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,146 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,147 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,147 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,147 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,148 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,148 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,148 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,149 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,149 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,149 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,150 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,150 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,150 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,151 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,155 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,155 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,156 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,156 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,162 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,164 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,164 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,164 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,166 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,166 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,167 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,167 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:01:32,171 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 22:01:32,185 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-21 22:01:32,207 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:01:32,207 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:01:32,207 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:01:32,208 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:01:32,208 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:01:32,208 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:01:32,208 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:01:32,208 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:01:32,221 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:01:32,223 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-21 22:01:32,226 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-21 22:01:32,227 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-10-21 22:01:32,274 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-10-21 22:01:32,274 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-21 22:01:32,280 INFO L80 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-21 22:01:32,283 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-21 22:01:33,692 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-10-21 22:01:34,060 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-21 22:01:34,164 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-10-21 22:01:34,217 INFO L131 LiptonReduction]: Checked pairs total: 2822 [2020-10-21 22:01:34,218 INFO L133 LiptonReduction]: Total number of compositions: 71 [2020-10-21 22:01:34,226 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-21 22:01:34,256 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-21 22:01:34,259 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-21 22:01:34,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 22:01:34,268 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:01:34,269 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:01:34,269 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:01:34,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:01:34,276 INFO L82 PathProgramCache]: Analyzing trace with hash 406549293, now seen corresponding path program 1 times [2020-10-21 22:01:34,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:01:34,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132470314] [2020-10-21 22:01:34,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:01:34,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:01:34,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:01:34,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132470314] [2020-10-21 22:01:34,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:01:34,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:01:34,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397356998] [2020-10-21 22:01:34,503 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-21 22:01:34,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:01:34,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-21 22:01:34,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-21 22:01:34,525 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-21 22:01:34,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:01:34,563 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-21 22:01:34,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-21 22:01:34,565 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-21 22:01:34,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:01:34,585 INFO L225 Difference]: With dead ends: 362 [2020-10-21 22:01:34,586 INFO L226 Difference]: Without dead ends: 298 [2020-10-21 22:01:34,587 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-21 22:01:34,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-21 22:01:34,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-21 22:01:34,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-21 22:01:34,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-21 22:01:34,663 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-21 22:01:34,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:01:34,664 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-21 22:01:34,664 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-21 22:01:34,664 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-21 22:01:34,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-21 22:01:34,666 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:01:34,666 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:01:34,667 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 22:01:34,667 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:01:34,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:01:34,667 INFO L82 PathProgramCache]: Analyzing trace with hash -281880887, now seen corresponding path program 1 times [2020-10-21 22:01:34,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:01:34,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721804738] [2020-10-21 22:01:34,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:01:34,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:01:34,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:01:34,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721804738] [2020-10-21 22:01:34,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:01:34,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:01:34,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318141682] [2020-10-21 22:01:34,772 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 22:01:34,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:01:34,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 22:01:34,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 22:01:34,773 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states. [2020-10-21 22:01:34,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:01:34,791 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions. [2020-10-21 22:01:34,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 22:01:34,791 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-21 22:01:34,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:01:34,794 INFO L225 Difference]: With dead ends: 217 [2020-10-21 22:01:34,794 INFO L226 Difference]: Without dead ends: 217 [2020-10-21 22:01:34,795 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 [2020-10-21 22:01:34,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-10-21 22:01:34,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-10-21 22:01:34,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-10-21 22:01:34,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions. [2020-10-21 22:01:34,810 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9 [2020-10-21 22:01:34,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:01:34,810 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions. [2020-10-21 22:01:34,810 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 22:01:34,811 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions. [2020-10-21 22:01:34,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-21 22:01:34,812 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:01:34,813 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:01:34,813 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 22:01:34,813 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:01:34,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:01:34,813 INFO L82 PathProgramCache]: Analyzing trace with hash -389577111, now seen corresponding path program 1 times [2020-10-21 22:01:34,814 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:01:34,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127542303] [2020-10-21 22:01:34,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:01:34,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:01:34,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:01:34,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127542303] [2020-10-21 22:01:34,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:01:34,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:01:34,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307036540] [2020-10-21 22:01:34,870 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:01:34,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:01:34,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:01:34,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:01:34,871 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states. [2020-10-21 22:01:34,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:01:34,897 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions. [2020-10-21 22:01:34,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 22:01:34,897 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-21 22:01:34,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:01:34,899 INFO L225 Difference]: With dead ends: 136 [2020-10-21 22:01:34,899 INFO L226 Difference]: Without dead ends: 136 [2020-10-21 22:01:34,900 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:01:34,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-21 22:01:34,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-10-21 22:01:34,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-21 22:01:34,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions. [2020-10-21 22:01:34,907 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12 [2020-10-21 22:01:34,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:01:34,907 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions. [2020-10-21 22:01:34,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:01:34,908 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions. [2020-10-21 22:01:34,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-21 22:01:34,909 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:01:34,909 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:01:34,910 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 22:01:34,910 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:01:34,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:01:34,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1823296511, now seen corresponding path program 1 times [2020-10-21 22:01:34,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:01:34,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873659595] [2020-10-21 22:01:34,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:01:34,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:01:34,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:01:34,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873659595] [2020-10-21 22:01:34,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:01:34,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 22:01:34,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212412722] [2020-10-21 22:01:34,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 22:01:34,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:01:34,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 22:01:34,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:01:34,988 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states. [2020-10-21 22:01:35,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:01:35,020 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions. [2020-10-21 22:01:35,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 22:01:35,021 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-21 22:01:35,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:01:35,022 INFO L225 Difference]: With dead ends: 109 [2020-10-21 22:01:35,022 INFO L226 Difference]: Without dead ends: 109 [2020-10-21 22:01:35,022 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:01:35,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-10-21 22:01:35,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-10-21 22:01:35,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-10-21 22:01:35,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions. [2020-10-21 22:01:35,027 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15 [2020-10-21 22:01:35,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:01:35,028 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions. [2020-10-21 22:01:35,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 22:01:35,028 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions. [2020-10-21 22:01:35,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-21 22:01:35,029 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:01:35,030 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:01:35,030 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 22:01:35,030 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:01:35,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:01:35,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1915158341, now seen corresponding path program 1 times [2020-10-21 22:01:35,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:01:35,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256169207] [2020-10-21 22:01:35,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:01:35,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:01:35,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:01:35,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256169207] [2020-10-21 22:01:35,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:01:35,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:01:35,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585438875] [2020-10-21 22:01:35,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:01:35,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:01:35,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:01:35,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:01:35,116 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 4 states. [2020-10-21 22:01:35,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:01:35,142 INFO L93 Difference]: Finished difference Result 135 states and 291 transitions. [2020-10-21 22:01:35,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 22:01:35,143 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-21 22:01:35,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:01:35,144 INFO L225 Difference]: With dead ends: 135 [2020-10-21 22:01:35,144 INFO L226 Difference]: Without dead ends: 55 [2020-10-21 22:01:35,144 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 [2020-10-21 22:01:35,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-21 22:01:35,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-10-21 22:01:35,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-21 22:01:35,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 99 transitions. [2020-10-21 22:01:35,147 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 99 transitions. Word has length 18 [2020-10-21 22:01:35,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:01:35,148 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 99 transitions. [2020-10-21 22:01:35,148 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:01:35,148 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 99 transitions. [2020-10-21 22:01:35,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-21 22:01:35,149 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:01:35,149 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:01:35,149 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 22:01:35,149 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:01:35,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:01:35,150 INFO L82 PathProgramCache]: Analyzing trace with hash 1566003365, now seen corresponding path program 2 times [2020-10-21 22:01:35,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:01:35,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855907320] [2020-10-21 22:01:35,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:01:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:01:35,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:01:35,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855907320] [2020-10-21 22:01:35,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:01:35,217 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 22:01:35,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264814875] [2020-10-21 22:01:35,217 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 22:01:35,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:01:35,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 22:01:35,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:01:35,218 INFO L87 Difference]: Start difference. First operand 55 states and 99 transitions. Second operand 5 states. [2020-10-21 22:01:35,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:01:35,251 INFO L93 Difference]: Finished difference Result 69 states and 121 transitions. [2020-10-21 22:01:35,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 22:01:35,251 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-21 22:01:35,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:01:35,252 INFO L225 Difference]: With dead ends: 69 [2020-10-21 22:01:35,252 INFO L226 Difference]: Without dead ends: 31 [2020-10-21 22:01:35,253 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-21 22:01:35,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-21 22:01:35,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-21 22:01:35,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-21 22:01:35,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2020-10-21 22:01:35,255 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 18 [2020-10-21 22:01:35,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:01:35,255 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2020-10-21 22:01:35,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 22:01:35,255 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2020-10-21 22:01:35,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-21 22:01:35,256 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:01:35,256 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:01:35,256 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-21 22:01:35,256 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:01:35,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:01:35,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1541967813, now seen corresponding path program 3 times [2020-10-21 22:01:35,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:01:35,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233842522] [2020-10-21 22:01:35,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:01:35,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:01:35,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:01:35,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233842522] [2020-10-21 22:01:35,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:01:35,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:01:35,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333825002] [2020-10-21 22:01:35,344 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 22:01:35,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:01:35,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 22:01:35,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:01:35,345 INFO L87 Difference]: Start difference. First operand 31 states and 45 transitions. Second operand 5 states. [2020-10-21 22:01:35,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:01:35,370 INFO L93 Difference]: Finished difference Result 30 states and 44 transitions. [2020-10-21 22:01:35,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 22:01:35,370 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-21 22:01:35,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:01:35,371 INFO L225 Difference]: With dead ends: 30 [2020-10-21 22:01:35,371 INFO L226 Difference]: Without dead ends: 0 [2020-10-21 22:01:35,371 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-21 22:01:35,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-21 22:01:35,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-21 22:01:35,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-21 22:01:35,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-21 22:01:35,372 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-21 22:01:35,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:01:35,373 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-21 22:01:35,373 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 22:01:35,373 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-21 22:01:35,373 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-21 22:01:35,373 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-21 22:01:35,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 10:01:35 BasicIcfg [2020-10-21 22:01:35,377 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 22:01:35,379 INFO L168 Benchmark]: Toolchain (without parser) took 4540.70 ms. Allocated memory was 149.9 MB in the beginning and 245.4 MB in the end (delta: 95.4 MB). Free memory was 104.4 MB in the beginning and 115.6 MB in the end (delta: -11.2 MB). Peak memory consumption was 84.2 MB. Max. memory is 7.1 GB. [2020-10-21 22:01:35,380 INFO L168 Benchmark]: CDTParser took 3.12 ms. Allocated memory is still 149.9 MB. Free memory was 124.6 MB in the beginning and 124.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-21 22:01:35,381 INFO L168 Benchmark]: CACSL2BoogieTranslator took 635.39 ms. Allocated memory was 149.9 MB in the beginning and 205.0 MB in the end (delta: 55.1 MB). Free memory was 103.3 MB in the beginning and 159.0 MB in the end (delta: -55.7 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2020-10-21 22:01:35,382 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.65 ms. Allocated memory is still 205.0 MB. Free memory was 159.0 MB in the beginning and 157.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-21 22:01:35,382 INFO L168 Benchmark]: Boogie Preprocessor took 28.07 ms. Allocated memory is still 205.0 MB. Free memory was 157.1 MB in the beginning and 155.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-21 22:01:35,383 INFO L168 Benchmark]: RCFGBuilder took 525.41 ms. Allocated memory is still 205.0 MB. Free memory was 155.1 MB in the beginning and 131.1 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-10-21 22:01:35,384 INFO L168 Benchmark]: TraceAbstraction took 3291.06 ms. Allocated memory was 205.0 MB in the beginning and 245.4 MB in the end (delta: 40.4 MB). Free memory was 131.1 MB in the beginning and 115.6 MB in the end (delta: 15.4 MB). Peak memory consumption was 55.8 MB. Max. memory is 7.1 GB. [2020-10-21 22:01:35,388 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.12 ms. Allocated memory is still 149.9 MB. Free memory was 124.6 MB in the beginning and 124.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 635.39 ms. Allocated memory was 149.9 MB in the beginning and 205.0 MB in the end (delta: 55.1 MB). Free memory was 103.3 MB in the beginning and 159.0 MB in the end (delta: -55.7 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.65 ms. Allocated memory is still 205.0 MB. Free memory was 159.0 MB in the beginning and 157.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.07 ms. Allocated memory is still 205.0 MB. Free memory was 157.1 MB in the beginning and 155.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 525.41 ms. Allocated memory is still 205.0 MB. Free memory was 155.1 MB in the beginning and 131.1 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3291.06 ms. Allocated memory was 205.0 MB in the beginning and 245.4 MB in the end (delta: 40.4 MB). Free memory was 131.1 MB in the beginning and 115.6 MB in the end (delta: 15.4 MB). Peak memory consumption was 55.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1022 VarBasedMoverChecksPositive, 44 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 32 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 86 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.9s, 86 PlacesBefore, 32 PlacesAfterwards, 79 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 2 ChoiceCompositions, 71 TotalNumberOfCompositions, 2822 MoverChecksTotal - PositiveResult [Line: 17]: 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, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 129 SDtfs, 85 SDslu, 171 SDs, 0 SdLazy, 55 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 3355 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...