/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/regression/showcase/Fischer.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 14:16:29,540 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 14:16:29,542 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 14:16:29,573 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 14:16:29,573 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 14:16:29,574 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 14:16:29,575 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 14:16:29,581 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 14:16:29,583 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 14:16:29,589 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 14:16:29,589 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 14:16:29,591 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 14:16:29,591 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 14:16:29,593 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 14:16:29,594 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 14:16:29,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 14:16:29,597 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 14:16:29,598 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 14:16:29,599 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 14:16:29,601 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 14:16:29,602 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 14:16:29,606 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 14:16:29,607 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 14:16:29,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 14:16:29,615 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 14:16:29,621 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 14:16:29,621 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 14:16:29,622 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 14:16:29,623 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2021-03-11 14:16:29,644 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 14:16:29,644 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 14:16:29,645 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 14:16:29,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 14:16:29,646 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 14:16:29,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 14:16:29,646 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 14:16:29,646 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 14:16:29,646 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 14:16:29,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 14:16:29,647 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 14:16:29,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 14:16:29,647 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 14:16:29,647 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 14:16:29,647 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 14:16:29,647 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 14:16:29,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 14:16:29,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 14:16:29,648 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 14:16:29,648 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 14:16:29,648 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 14:16:29,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 14:16:29,648 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 14:16:29,649 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 14:16:29,649 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 14:16:29,649 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 14:16:29,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 14:16:29,649 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-11 14:16:29,649 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 14:16:29,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 14:16:29,971 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 14:16:29,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 14:16:29,974 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-11 14:16:29,976 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-11 14:16:29,977 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/Fischer.bpl [2021-03-11 14:16:29,977 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/Fischer.bpl' [2021-03-11 14:16:30,017 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 14:16:30,021 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-11 14:16:30,022 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 14:16:30,022 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 14:16:30,022 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 14:16:30,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "Fischer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:16:30" (1/1) ... [2021-03-11 14:16:30,041 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "Fischer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:16:30" (1/1) ... [2021-03-11 14:16:30,047 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 14:16:30,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 14:16:30,051 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 14:16:30,051 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 14:16:30,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Fischer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:16:30" (1/1) ... [2021-03-11 14:16:30,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Fischer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:16:30" (1/1) ... [2021-03-11 14:16:30,058 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Fischer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:16:30" (1/1) ... [2021-03-11 14:16:30,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Fischer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:16:30" (1/1) ... [2021-03-11 14:16:30,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Fischer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:16:30" (1/1) ... [2021-03-11 14:16:30,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Fischer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:16:30" (1/1) ... [2021-03-11 14:16:30,064 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Fischer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:16:30" (1/1) ... [2021-03-11 14:16:30,065 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 14:16:30,065 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 14:16:30,066 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 14:16:30,066 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 14:16:30,067 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Fischer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:16:30" (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 [2021-03-11 14:16:30,124 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Process2 given in one single declaration [2021-03-11 14:16:30,124 INFO L130 BoogieDeclarations]: Found specification of procedure Process2 [2021-03-11 14:16:30,124 INFO L138 BoogieDeclarations]: Found implementation of procedure Process2 [2021-03-11 14:16:30,126 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Process1 given in one single declaration [2021-03-11 14:16:30,126 INFO L130 BoogieDeclarations]: Found specification of procedure Process1 [2021-03-11 14:16:30,126 INFO L138 BoogieDeclarations]: Found implementation of procedure Process1 [2021-03-11 14:16:30,126 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-11 14:16:30,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 14:16:30,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 14:16:30,127 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Clock given in one single declaration [2021-03-11 14:16:30,127 INFO L130 BoogieDeclarations]: Found specification of procedure Clock [2021-03-11 14:16:30,127 INFO L138 BoogieDeclarations]: Found implementation of procedure Clock [2021-03-11 14:16:30,128 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 14:16:30,311 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 14:16:30,311 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-03-11 14:16:30,312 INFO L202 PluginConnector]: Adding new model Fischer.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:16:30 BoogieIcfgContainer [2021-03-11 14:16:30,312 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 14:16:30,313 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 14:16:30,313 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 14:16:30,320 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 14:16:30,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Fischer.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:16:30" (1/2) ... [2021-03-11 14:16:30,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@528fe309 and model type Fischer.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 02:16:30, skipping insertion in model container [2021-03-11 14:16:30,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Fischer.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:16:30" (2/2) ... [2021-03-11 14:16:30,322 INFO L111 eAbstractionObserver]: Analyzing ICFG Fischer.bpl [2021-03-11 14:16:30,326 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-11 14:16:30,326 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 14:16:30,329 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-11 14:16:30,329 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 14:16:30,373 WARN L313 ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:16:30,374 WARN L313 ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:16:30,374 WARN L313 ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:16:30,374 WARN L313 ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:16:30,375 WARN L313 ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:16:30,375 WARN L313 ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:16:30,375 WARN L313 ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:16:30,375 WARN L313 ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:16:30,376 WARN L313 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:16:30,376 WARN L313 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:16:30,376 WARN L313 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:16:30,377 WARN L313 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:16:30,377 WARN L313 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:16:30,377 WARN L313 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:16:30,377 WARN L313 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:16:30,377 WARN L313 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:16:30,384 WARN L313 ript$VariableManager]: TermVariabe Process1Thread1of1ForFork1_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:16:30,385 WARN L313 ript$VariableManager]: TermVariabe Process2Thread1of1ForFork2_deadline not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 14:16:30,386 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-11 14:16:30,399 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-03-11 14:16:30,429 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 14:16:30,429 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-11 14:16:30,429 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 14:16:30,430 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 14:16:30,430 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 14:16:30,430 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 14:16:30,430 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 14:16:30,430 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 14:16:30,442 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 14:16:30,451 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 46 transitions, 107 flow [2021-03-11 14:16:30,454 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 46 transitions, 107 flow [2021-03-11 14:16:30,455 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 46 transitions, 107 flow [2021-03-11 14:16:30,489 INFO L129 PetriNetUnfolder]: 5/43 cut-off events. [2021-03-11 14:16:30,489 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 14:16:30,494 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 43 events. 5/43 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 111 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2021-03-11 14:16:30,498 INFO L116 LiptonReduction]: Number of co-enabled transitions 818 [2021-03-11 14:16:30,922 INFO L131 LiptonReduction]: Checked pairs total: 1436 [2021-03-11 14:16:30,922 INFO L133 LiptonReduction]: Total number of compositions: 12 [2021-03-11 14:16:30,934 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 34 transitions, 83 flow [2021-03-11 14:16:30,982 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 510 states, 506 states have (on average 3.6679841897233203) internal successors, (1856), 509 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:16:30,985 INFO L276 IsEmpty]: Start isEmpty. Operand has 510 states, 506 states have (on average 3.6679841897233203) internal successors, (1856), 509 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:16:30,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-03-11 14:16:30,989 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:16:30,990 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-03-11 14:16:30,990 INFO L428 AbstractCegarLoop]: === Iteration 1 === [Process1Err0ASSERT_VIOLATIONASSERT, Process2Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1INUSE_VIOLATION, Process2Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-11 14:16:30,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:16:30,994 INFO L82 PathProgramCache]: Analyzing trace with hash 176055231, now seen corresponding path program 1 times [2021-03-11 14:16:31,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:16:31,004 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504380633] [2021-03-11 14:16:31,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:16:31,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:16:31,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:16:31,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 14:16:31,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:16:31,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504380633] [2021-03-11 14:16:31,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:16:31,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-11 14:16:31,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168201345] [2021-03-11 14:16:31,101 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 14:16:31,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:16:31,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 14:16:31,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:16:31,115 INFO L87 Difference]: Start difference. First operand has 510 states, 506 states have (on average 3.6679841897233203) internal successors, (1856), 509 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:16:31,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:16:31,150 INFO L93 Difference]: Finished difference Result 242 states and 849 transitions. [2021-03-11 14:16:31,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 14:16:31,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-03-11 14:16:31,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:16:31,162 INFO L225 Difference]: With dead ends: 242 [2021-03-11 14:16:31,162 INFO L226 Difference]: Without dead ends: 242 [2021-03-11 14:16:31,163 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:16:31,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-03-11 14:16:31,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 238. [2021-03-11 14:16:31,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 238 states have (on average 3.508403361344538) internal successors, (835), 237 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:16:31,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 835 transitions. [2021-03-11 14:16:31,210 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 835 transitions. Word has length 5 [2021-03-11 14:16:31,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:16:31,211 INFO L480 AbstractCegarLoop]: Abstraction has 238 states and 835 transitions. [2021-03-11 14:16:31,211 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:16:31,211 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 835 transitions. [2021-03-11 14:16:31,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-03-11 14:16:31,213 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:16:31,213 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:16:31,213 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 14:16:31,213 INFO L428 AbstractCegarLoop]: === Iteration 2 === [Process1Err0ASSERT_VIOLATIONASSERT, Process2Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1INUSE_VIOLATION, Process2Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-11 14:16:31,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:16:31,214 INFO L82 PathProgramCache]: Analyzing trace with hash 425878739, now seen corresponding path program 1 times [2021-03-11 14:16:31,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:16:31,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318136764] [2021-03-11 14:16:31,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:16:31,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:16:31,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:16:31,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:16:31,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:16:31,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 14:16:31,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:16:31,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:16:31,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:16:31,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318136764] [2021-03-11 14:16:31,246 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:16:31,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 14:16:31,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919811100] [2021-03-11 14:16:31,249 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 14:16:31,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:16:31,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 14:16:31,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:16:31,252 INFO L87 Difference]: Start difference. First operand 238 states and 835 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:16:31,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:16:31,292 INFO L93 Difference]: Finished difference Result 368 states and 1266 transitions. [2021-03-11 14:16:31,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 14:16:31,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-03-11 14:16:31,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:16:31,298 INFO L225 Difference]: With dead ends: 368 [2021-03-11 14:16:31,298 INFO L226 Difference]: Without dead ends: 332 [2021-03-11 14:16:31,300 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:16:31,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2021-03-11 14:16:31,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 244. [2021-03-11 14:16:31,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 244 states have (on average 3.360655737704918) internal successors, (820), 243 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:16:31,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 820 transitions. [2021-03-11 14:16:31,327 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 820 transitions. Word has length 9 [2021-03-11 14:16:31,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:16:31,327 INFO L480 AbstractCegarLoop]: Abstraction has 244 states and 820 transitions. [2021-03-11 14:16:31,328 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:16:31,328 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 820 transitions. [2021-03-11 14:16:31,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-03-11 14:16:31,329 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:16:31,329 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:16:31,329 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 14:16:31,329 INFO L428 AbstractCegarLoop]: === Iteration 3 === [Process1Err0ASSERT_VIOLATIONASSERT, Process2Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1INUSE_VIOLATION, Process2Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-11 14:16:31,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:16:31,330 INFO L82 PathProgramCache]: Analyzing trace with hash 1037038423, now seen corresponding path program 1 times [2021-03-11 14:16:31,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:16:31,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107008378] [2021-03-11 14:16:31,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:16:31,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:16:31,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:16:31,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:16:31,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:16:31,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 14:16:31,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:16:31,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:16:31,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:16:31,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107008378] [2021-03-11 14:16:31,362 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:16:31,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 14:16:31,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418216805] [2021-03-11 14:16:31,363 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 14:16:31,363 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:16:31,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 14:16:31,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:16:31,364 INFO L87 Difference]: Start difference. First operand 244 states and 820 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:16:31,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:16:31,397 INFO L93 Difference]: Finished difference Result 328 states and 1094 transitions. [2021-03-11 14:16:31,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 14:16:31,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-03-11 14:16:31,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:16:31,400 INFO L225 Difference]: With dead ends: 328 [2021-03-11 14:16:31,400 INFO L226 Difference]: Without dead ends: 328 [2021-03-11 14:16:31,400 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:16:31,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2021-03-11 14:16:31,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 276. [2021-03-11 14:16:31,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 276 states have (on average 3.318840579710145) internal successors, (916), 275 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:16:31,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 916 transitions. [2021-03-11 14:16:31,413 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 916 transitions. Word has length 9 [2021-03-11 14:16:31,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:16:31,414 INFO L480 AbstractCegarLoop]: Abstraction has 276 states and 916 transitions. [2021-03-11 14:16:31,414 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:16:31,414 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 916 transitions. [2021-03-11 14:16:31,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-03-11 14:16:31,415 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:16:31,415 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:16:31,415 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 14:16:31,416 INFO L428 AbstractCegarLoop]: === Iteration 4 === [Process1Err0ASSERT_VIOLATIONASSERT, Process2Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1INUSE_VIOLATION, Process2Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-11 14:16:31,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:16:31,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1889811134, now seen corresponding path program 1 times [2021-03-11 14:16:31,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:16:31,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648810323] [2021-03-11 14:16:31,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:16:31,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:16:31,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:16:31,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:16:31,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:16:31,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 14:16:31,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:16:31,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:16:31,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:16:31,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648810323] [2021-03-11 14:16:31,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:16:31,435 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 14:16:31,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966169980] [2021-03-11 14:16:31,436 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 14:16:31,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:16:31,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 14:16:31,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:16:31,437 INFO L87 Difference]: Start difference. First operand 276 states and 916 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:16:31,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:16:31,495 INFO L93 Difference]: Finished difference Result 320 states and 1058 transitions. [2021-03-11 14:16:31,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 14:16:31,496 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-03-11 14:16:31,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:16:31,498 INFO L225 Difference]: With dead ends: 320 [2021-03-11 14:16:31,498 INFO L226 Difference]: Without dead ends: 320 [2021-03-11 14:16:31,498 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:16:31,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2021-03-11 14:16:31,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 300. [2021-03-11 14:16:31,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 300 states have (on average 3.2933333333333334) internal successors, (988), 299 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:16:31,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 988 transitions. [2021-03-11 14:16:31,510 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 988 transitions. Word has length 13 [2021-03-11 14:16:31,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:16:31,510 INFO L480 AbstractCegarLoop]: Abstraction has 300 states and 988 transitions. [2021-03-11 14:16:31,510 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:16:31,511 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 988 transitions. [2021-03-11 14:16:31,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-03-11 14:16:31,512 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:16:31,512 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:16:31,512 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 14:16:31,512 INFO L428 AbstractCegarLoop]: === Iteration 5 === [Process1Err0ASSERT_VIOLATIONASSERT, Process2Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1INUSE_VIOLATION, Process2Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-11 14:16:31,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:16:31,513 INFO L82 PathProgramCache]: Analyzing trace with hash -498975856, now seen corresponding path program 1 times [2021-03-11 14:16:31,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:16:31,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021317214] [2021-03-11 14:16:31,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:16:31,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:16:31,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:16:31,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:16:31,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:16:31,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 14:16:31,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:16:31,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:16:31,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:16:31,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021317214] [2021-03-11 14:16:31,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:16:31,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 14:16:31,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975582180] [2021-03-11 14:16:31,528 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 14:16:31,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:16:31,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 14:16:31,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:16:31,529 INFO L87 Difference]: Start difference. First operand 300 states and 988 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:16:31,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:16:31,547 INFO L93 Difference]: Finished difference Result 324 states and 1049 transitions. [2021-03-11 14:16:31,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 14:16:31,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-03-11 14:16:31,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:16:31,550 INFO L225 Difference]: With dead ends: 324 [2021-03-11 14:16:31,550 INFO L226 Difference]: Without dead ends: 288 [2021-03-11 14:16:31,550 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 14:16:31,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2021-03-11 14:16:31,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 270. [2021-03-11 14:16:31,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 270 states have (on average 3.2222222222222223) internal successors, (870), 269 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:16:31,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 870 transitions. [2021-03-11 14:16:31,558 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 870 transitions. Word has length 13 [2021-03-11 14:16:31,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:16:31,558 INFO L480 AbstractCegarLoop]: Abstraction has 270 states and 870 transitions. [2021-03-11 14:16:31,558 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:16:31,558 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 870 transitions. [2021-03-11 14:16:31,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-03-11 14:16:31,559 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:16:31,559 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:16:31,559 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 14:16:31,559 INFO L428 AbstractCegarLoop]: === Iteration 6 === [Process1Err0ASSERT_VIOLATIONASSERT, Process2Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1INUSE_VIOLATION, Process2Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-11 14:16:31,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:16:31,560 INFO L82 PathProgramCache]: Analyzing trace with hash -1920589216, now seen corresponding path program 1 times [2021-03-11 14:16:31,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:16:31,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612249580] [2021-03-11 14:16:31,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:16:31,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:16:31,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:16:31,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 14:16:31,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:16:31,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 14:16:31,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:16:31,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:16:31,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:16:31,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612249580] [2021-03-11 14:16:31,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:16:31,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 14:16:31,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115609718] [2021-03-11 14:16:31,588 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 14:16:31,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:16:31,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 14:16:31,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 14:16:31,588 INFO L87 Difference]: Start difference. First operand 270 states and 870 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:16:31,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:16:31,610 INFO L93 Difference]: Finished difference Result 289 states and 909 transitions. [2021-03-11 14:16:31,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-11 14:16:31,611 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-03-11 14:16:31,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:16:31,612 INFO L225 Difference]: With dead ends: 289 [2021-03-11 14:16:31,612 INFO L226 Difference]: Without dead ends: 289 [2021-03-11 14:16:31,613 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-11 14:16:31,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2021-03-11 14:16:31,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2021-03-11 14:16:31,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 289 states have (on average 3.1453287197231834) internal successors, (909), 288 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:16:31,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 909 transitions. [2021-03-11 14:16:31,620 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 909 transitions. Word has length 17 [2021-03-11 14:16:31,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:16:31,621 INFO L480 AbstractCegarLoop]: Abstraction has 289 states and 909 transitions. [2021-03-11 14:16:31,621 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:16:31,621 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 909 transitions. [2021-03-11 14:16:31,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-03-11 14:16:31,622 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:16:31,622 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:16:31,622 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 14:16:31,622 INFO L428 AbstractCegarLoop]: === Iteration 7 === [Process1Err0ASSERT_VIOLATIONASSERT, Process2Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1INUSE_VIOLATION, Process2Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-11 14:16:31,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:16:31,622 INFO L82 PathProgramCache]: Analyzing trace with hash -1415976117, now seen corresponding path program 1 times [2021-03-11 14:16:31,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:16:31,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762550604] [2021-03-11 14:16:31,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:16:31,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:16:31,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:16:31,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 14:16:31,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:16:31,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:16:31,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:16:31,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 14:16:31,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:16:31,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 14:16:31,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:16:31,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:16:31,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:16:31,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762550604] [2021-03-11 14:16:31,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:16:31,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-11 14:16:31,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714466664] [2021-03-11 14:16:31,668 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 14:16:31,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:16:31,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 14:16:31,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-11 14:16:31,669 INFO L87 Difference]: Start difference. First operand 289 states and 909 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:16:31,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:16:31,761 INFO L93 Difference]: Finished difference Result 333 states and 1019 transitions. [2021-03-11 14:16:31,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 14:16:31,762 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-03-11 14:16:31,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:16:31,763 INFO L225 Difference]: With dead ends: 333 [2021-03-11 14:16:31,763 INFO L226 Difference]: Without dead ends: 281 [2021-03-11 14:16:31,764 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 46.6ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-03-11 14:16:31,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2021-03-11 14:16:31,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2021-03-11 14:16:31,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 281 states have (on average 3.1494661921708187) internal successors, (885), 280 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:16:31,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 885 transitions. [2021-03-11 14:16:31,780 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 885 transitions. Word has length 18 [2021-03-11 14:16:31,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:16:31,781 INFO L480 AbstractCegarLoop]: Abstraction has 281 states and 885 transitions. [2021-03-11 14:16:31,781 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:16:31,781 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 885 transitions. [2021-03-11 14:16:31,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-03-11 14:16:31,782 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:16:31,782 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:16:31,782 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-11 14:16:31,782 INFO L428 AbstractCegarLoop]: === Iteration 8 === [Process1Err0ASSERT_VIOLATIONASSERT, Process2Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1INUSE_VIOLATION, Process2Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-11 14:16:31,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:16:31,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1618955129, now seen corresponding path program 2 times [2021-03-11 14:16:31,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:16:31,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481909103] [2021-03-11 14:16:31,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:16:31,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:16:31,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:16:31,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 14:16:31,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:16:31,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 14:16:31,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:16:31,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:16:31,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:16:31,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481909103] [2021-03-11 14:16:31,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:16:31,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 14:16:31,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149695851] [2021-03-11 14:16:31,816 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 14:16:31,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:16:31,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 14:16:31,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 14:16:31,817 INFO L87 Difference]: Start difference. First operand 281 states and 885 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:16:31,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:16:31,837 INFO L93 Difference]: Finished difference Result 299 states and 922 transitions. [2021-03-11 14:16:31,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-11 14:16:31,838 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-03-11 14:16:31,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:16:31,840 INFO L225 Difference]: With dead ends: 299 [2021-03-11 14:16:31,840 INFO L226 Difference]: Without dead ends: 299 [2021-03-11 14:16:31,840 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-11 14:16:31,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2021-03-11 14:16:31,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 299. [2021-03-11 14:16:31,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 299 states have (on average 3.0836120401337794) internal successors, (922), 298 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:16:31,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 922 transitions. [2021-03-11 14:16:31,848 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 922 transitions. Word has length 18 [2021-03-11 14:16:31,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:16:31,848 INFO L480 AbstractCegarLoop]: Abstraction has 299 states and 922 transitions. [2021-03-11 14:16:31,848 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:16:31,849 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 922 transitions. [2021-03-11 14:16:31,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-03-11 14:16:31,849 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:16:31,849 INFO L519 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:16:31,849 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-11 14:16:31,850 INFO L428 AbstractCegarLoop]: === Iteration 9 === [Process1Err0ASSERT_VIOLATIONASSERT, Process2Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, Process1Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1INUSE_VIOLATION, Process2Err0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-03-11 14:16:31,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:16:31,850 INFO L82 PathProgramCache]: Analyzing trace with hash 627551234, now seen corresponding path program 3 times [2021-03-11 14:16:31,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:16:31,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338898644] [2021-03-11 14:16:31,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:16:31,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:16:31,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:16:31,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 14:16:31,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:16:31,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:16:31,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:16:31,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 14:16:31,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:16:31,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 14:16:31,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:16:31,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:16:31,912 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:16:31,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338898644] [2021-03-11 14:16:31,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:16:31,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-11 14:16:31,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984217849] [2021-03-11 14:16:31,913 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-11 14:16:31,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:16:31,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-11 14:16:31,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-11 14:16:31,914 INFO L87 Difference]: Start difference. First operand 299 states and 922 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:16:32,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:16:32,018 INFO L93 Difference]: Finished difference Result 143 states and 404 transitions. [2021-03-11 14:16:32,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-11 14:16:32,019 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-03-11 14:16:32,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:16:32,019 INFO L225 Difference]: With dead ends: 143 [2021-03-11 14:16:32,019 INFO L226 Difference]: Without dead ends: 0 [2021-03-11 14:16:32,019 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 76.9ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-03-11 14:16:32,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-11 14:16:32,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-11 14:16:32,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:16:32,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-11 14:16:32,020 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2021-03-11 14:16:32,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:16:32,020 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-11 14:16:32,020 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:16:32,020 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-11 14:16:32,020 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-11 14:16:32,020 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-11 14:16:32,023 INFO L202 PluginConnector]: Adding new model Fischer.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 02:16:32 BasicIcfg [2021-03-11 14:16:32,023 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 14:16:32,024 INFO L168 Benchmark]: Toolchain (without parser) took 2005.80 ms. Allocated memory was 255.9 MB in the beginning and 352.3 MB in the end (delta: 96.5 MB). Free memory was 236.5 MB in the beginning and 329.4 MB in the end (delta: -92.9 MB). Peak memory consumption was 4.0 MB. Max. memory is 16.0 GB. [2021-03-11 14:16:32,025 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory was 237.6 MB in the beginning and 237.4 MB in the end (delta: 182.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 14:16:32,025 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.62 ms. Allocated memory is still 255.9 MB. Free memory was 236.0 MB in the beginning and 234.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 14:16:32,025 INFO L168 Benchmark]: Boogie Preprocessor took 13.60 ms. Allocated memory is still 255.9 MB. Free memory was 234.5 MB in the beginning and 233.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 14:16:32,026 INFO L168 Benchmark]: RCFGBuilder took 246.70 ms. Allocated memory is still 255.9 MB. Free memory was 233.4 MB in the beginning and 237.0 MB in the end (delta: -3.5 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.0 GB. [2021-03-11 14:16:32,026 INFO L168 Benchmark]: TraceAbstraction took 1710.24 ms. Allocated memory was 255.9 MB in the beginning and 352.3 MB in the end (delta: 96.5 MB). Free memory was 237.0 MB in the beginning and 329.4 MB in the end (delta: -92.4 MB). Peak memory consumption was 2.6 MB. Max. memory is 16.0 GB. [2021-03-11 14:16:32,028 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory was 237.6 MB in the beginning and 237.4 MB in the end (delta: 182.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 25.62 ms. Allocated memory is still 255.9 MB. Free memory was 236.0 MB in the beginning and 234.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.60 ms. Allocated memory is still 255.9 MB. Free memory was 234.5 MB in the beginning and 233.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 246.70 ms. Allocated memory is still 255.9 MB. Free memory was 233.4 MB in the beginning and 237.0 MB in the end (delta: -3.5 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1710.24 ms. Allocated memory was 255.9 MB in the beginning and 352.3 MB in the end (delta: 96.5 MB). Free memory was 237.0 MB in the beginning and 329.4 MB in the end (delta: -92.4 MB). Peak memory consumption was 2.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 468.5ms, 51 PlacesBefore, 39 PlacesAfterwards, 46 TransitionsBefore, 34 TransitionsAfterwards, 818 CoEnabledTransitionPairs, 2 FixpointIterations, 3 TrivialSequentialCompositions, 9 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 12 TotalNumberOfCompositions, 1436 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 682, positive: 608, positive conditional: 0, positive unconditional: 608, negative: 74, negative conditional: 0, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 391, positive: 359, positive conditional: 0, positive unconditional: 359, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 391, positive: 339, positive conditional: 0, positive unconditional: 339, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 52, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 161, positive: 52, positive conditional: 0, positive unconditional: 52, negative: 109, negative conditional: 0, negative unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 682, positive: 249, positive conditional: 0, positive unconditional: 249, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 391, unknown conditional: 0, unknown unconditional: 391] , Statistics on independence cache: Total cache size (in pairs): 166, Positive cache size: 139, Positive conditional cache size: 0, Positive unconditional cache size: 139, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27 - PositiveResult [Line: 78]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 57]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 42 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1595.1ms, OverallIterations: 9, TraceHistogramMax: 2, EmptinessCheckTime: 14.9ms, AutomataDifference: 482.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 552.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 305 SDtfs, 217 SDslu, 244 SDs, 0 SdLazy, 200 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 169.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 158.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=510occurred in iteration=0, InterpolantAutomatonStates: 37, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 127.8ms AutomataMinimizationTime, 9 MinimizatonAttempts, 182 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 9.3ms SsaConstructionTime, 56.0ms SatisfiabilityAnalysisTime, 215.9ms InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 112 ConstructedInterpolants, 0 QuantifiedInterpolants, 300 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 1/1 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...