/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/weaver-benchmarks/generated/chl/container-subst.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 15:35:29,456 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 15:35:29,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 15:35:29,476 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 15:35:29,476 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 15:35:29,477 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 15:35:29,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 15:35:29,479 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 15:35:29,481 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 15:35:29,482 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 15:35:29,483 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 15:35:29,483 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 15:35:29,483 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 15:35:29,484 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 15:35:29,485 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 15:35:29,485 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 15:35:29,486 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 15:35:29,486 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 15:35:29,488 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 15:35:29,489 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 15:35:29,490 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 15:35:29,495 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 15:35:29,496 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 15:35:29,497 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 15:35:29,502 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 15:35:29,507 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 15:35:29,507 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 15:35:29,508 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 15:35:29,511 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 15:35:29,535 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 15:35:29,536 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 15:35:29,537 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 15:35:29,537 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 15:35:29,537 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 15:35:29,537 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 15:35:29,537 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 15:35:29,538 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 15:35:29,538 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 15:35:29,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 15:35:29,538 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 15:35:29,538 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 15:35:29,538 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 15:35:29,538 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 15:35:29,538 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 15:35:29,539 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 15:35:29,539 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 15:35:29,539 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 15:35:29,539 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 15:35:29,539 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 15:35:29,539 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 15:35:29,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 15:35:29,540 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 15:35:29,540 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 15:35:29,540 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 15:35:29,540 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 15:35:29,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 15:35:29,540 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-11 15:35:29,540 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 15:35:29,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 15:35:29,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 15:35:29,868 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 15:35:29,868 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-11 15:35:29,869 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-11 15:35:29,870 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/container-subst.wvr.bpl [2021-03-11 15:35:29,870 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/container-subst.wvr.bpl' [2021-03-11 15:35:29,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 15:35:29,928 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-11 15:35:29,929 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 15:35:29,929 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 15:35:29,929 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 15:35:29,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "container-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:35:29" (1/1) ... [2021-03-11 15:35:29,944 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "container-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:35:29" (1/1) ... [2021-03-11 15:35:29,950 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 15:35:29,951 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 15:35:29,952 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 15:35:29,952 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 15:35:29,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "container-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:35:29" (1/1) ... [2021-03-11 15:35:29,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "container-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:35:29" (1/1) ... [2021-03-11 15:35:29,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "container-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:35:29" (1/1) ... [2021-03-11 15:35:29,960 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "container-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:35:29" (1/1) ... [2021-03-11 15:35:29,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "container-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:35:29" (1/1) ... [2021-03-11 15:35:29,964 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "container-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:35:29" (1/1) ... [2021-03-11 15:35:29,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "container-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:35:29" (1/1) ... [2021-03-11 15:35:29,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 15:35:29,966 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 15:35:29,966 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 15:35:29,967 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 15:35:29,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "container-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:35:29" (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 15:35:30,021 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-11 15:35:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-11 15:35:30,022 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-11 15:35:30,022 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-11 15:35:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-11 15:35:30,022 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-11 15:35:30,022 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-11 15:35:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 15:35:30,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 15:35:30,025 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-03-11 15:35:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-11 15:35:30,025 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-11 15:35:30,027 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 15:35:30,298 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 15:35:30,299 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-11 15:35:30,300 INFO L202 PluginConnector]: Adding new model container-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 03:35:30 BoogieIcfgContainer [2021-03-11 15:35:30,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 15:35:30,301 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 15:35:30,301 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 15:35:30,303 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 15:35:30,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "container-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:35:29" (1/2) ... [2021-03-11 15:35:30,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c6bff33 and model type container-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 03:35:30, skipping insertion in model container [2021-03-11 15:35:30,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "container-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 03:35:30" (2/2) ... [2021-03-11 15:35:30,304 INFO L111 eAbstractionObserver]: Analyzing ICFG container-subst.wvr.bpl [2021-03-11 15:35:30,308 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-11 15:35:30,308 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 15:35:30,310 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 15:35:30,311 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 15:35:30,332 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-03-11 15:35:30,343 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-11 15:35:30,356 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 15:35:30,356 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-11 15:35:30,356 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 15:35:30,356 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 15:35:30,356 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 15:35:30,357 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 15:35:30,357 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 15:35:30,357 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 15:35:30,364 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 15:35:30,372 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 19 transitions, 62 flow [2021-03-11 15:35:30,374 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 19 transitions, 62 flow [2021-03-11 15:35:30,375 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 19 transitions, 62 flow [2021-03-11 15:35:30,391 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-03-11 15:35:30,391 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-11 15:35:30,394 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 16 events. 0/16 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 14 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-11 15:35:30,395 INFO L116 LiptonReduction]: Number of co-enabled transitions 48 [2021-03-11 15:35:30,609 INFO L131 LiptonReduction]: Checked pairs total: 54 [2021-03-11 15:35:30,609 INFO L133 LiptonReduction]: Total number of compositions: 6 [2021-03-11 15:35:30,621 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 14 transitions, 52 flow [2021-03-11 15:35:30,628 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 24 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 23 states have internal predecessors, (38), 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 15:35:30,630 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 23 states have internal predecessors, (38), 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 15:35:30,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 15:35:30,642 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 15:35:30,642 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 15:35:30,643 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 15:35:30,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 15:35:30,650 INFO L82 PathProgramCache]: Analyzing trace with hash 648784382, now seen corresponding path program 1 times [2021-03-11 15:35:30,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 15:35:30,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874427497] [2021-03-11 15:35:30,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 15:35:30,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 15:35:31,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:35:31,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 15:35:31,125 INFO L142 QuantifierPusher]: treesize reduction 1571, result has 13.7 percent of original size [2021-03-11 15:35:31,129 INFO L147 QuantifierPusher]: treesize reduction 6, result has 97.6 percent of original size 244 [2021-03-11 15:35:31,251 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 48 [2021-03-11 15:35:31,327 INFO L142 QuantifierPusher]: treesize reduction 2497, result has 20.8 percent of original size [2021-03-11 15:35:31,337 INFO L147 QuantifierPusher]: treesize reduction 84, result has 87.2 percent of original size 572 [2021-03-11 15:35:31,708 WARN L205 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 79 [2021-03-11 15:35:31,714 INFO L142 QuantifierPusher]: treesize reduction 226, result has 27.8 percent of original size [2021-03-11 15:35:31,716 INFO L147 QuantifierPusher]: treesize reduction 4, result has 95.4 percent of original size 83 [2021-03-11 15:35:31,774 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 15:35:31,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874427497] [2021-03-11 15:35:31,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 15:35:31,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 15:35:31,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636710094] [2021-03-11 15:35:31,779 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 15:35:31,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 15:35:31,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 15:35:31,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 15:35:31,794 INFO L87 Difference]: Start difference. First operand has 24 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 23 states have internal predecessors, (38), 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 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 15:35:31,984 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2021-03-11 15:35:32,190 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-03-11 15:35:32,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 15:35:32,201 INFO L93 Difference]: Finished difference Result 36 states and 50 transitions. [2021-03-11 15:35:32,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 15:35:32,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 10 [2021-03-11 15:35:32,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 15:35:32,209 INFO L225 Difference]: With dead ends: 36 [2021-03-11 15:35:32,209 INFO L226 Difference]: Without dead ends: 28 [2021-03-11 15:35:32,210 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 876.1ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-11 15:35:32,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-03-11 15:35:32,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 23. [2021-03-11 15:35:32,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 22 states have internal predecessors, (34), 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 15:35:32,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 34 transitions. [2021-03-11 15:35:32,231 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 34 transitions. Word has length 10 [2021-03-11 15:35:32,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 15:35:32,232 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 34 transitions. [2021-03-11 15:35:32,232 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 15:35:32,232 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 34 transitions. [2021-03-11 15:35:32,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 15:35:32,232 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 15:35:32,232 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 15:35:32,233 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 15:35:32,233 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 15:35:32,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 15:35:32,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1563664818, now seen corresponding path program 2 times [2021-03-11 15:35:32,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 15:35:32,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996715073] [2021-03-11 15:35:32,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 15:35:32,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 15:35:32,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:35:32,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 15:35:32,389 INFO L142 QuantifierPusher]: treesize reduction 2128, result has 10.5 percent of original size [2021-03-11 15:35:32,392 INFO L147 QuantifierPusher]: treesize reduction 6, result has 97.6 percent of original size 244 [2021-03-11 15:35:32,496 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 48 [2021-03-11 15:35:32,633 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 131 [2021-03-11 15:35:32,635 INFO L142 QuantifierPusher]: treesize reduction 16040, result has 10.7 percent of original size [2021-03-11 15:35:32,651 INFO L147 QuantifierPusher]: treesize reduction 802, result has 58.2 percent of original size 1117 [2021-03-11 15:35:33,148 WARN L205 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 75 [2021-03-11 15:35:33,155 INFO L142 QuantifierPusher]: treesize reduction 627, result has 34.1 percent of original size [2021-03-11 15:35:33,157 INFO L147 QuantifierPusher]: treesize reduction 74, result has 77.2 percent of original size 250 [2021-03-11 15:35:33,295 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 18 [2021-03-11 15:35:33,300 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 15:35:33,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996715073] [2021-03-11 15:35:33,301 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 15:35:33,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 15:35:33,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925621393] [2021-03-11 15:35:33,302 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 15:35:33,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 15:35:33,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 15:35:33,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 15:35:33,303 INFO L87 Difference]: Start difference. First operand 23 states and 34 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 15:35:33,451 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-03-11 15:35:33,599 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-03-11 15:35:33,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 15:35:33,610 INFO L93 Difference]: Finished difference Result 34 states and 44 transitions. [2021-03-11 15:35:33,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 15:35:33,610 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 10 [2021-03-11 15:35:33,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 15:35:33,611 INFO L225 Difference]: With dead ends: 34 [2021-03-11 15:35:33,611 INFO L226 Difference]: Without dead ends: 24 [2021-03-11 15:35:33,611 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1022.2ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-11 15:35:33,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-03-11 15:35:33,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 19. [2021-03-11 15:35:33,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 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 15:35:33,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 26 transitions. [2021-03-11 15:35:33,614 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 26 transitions. Word has length 10 [2021-03-11 15:35:33,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 15:35:33,614 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 26 transitions. [2021-03-11 15:35:33,614 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 15:35:33,614 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 26 transitions. [2021-03-11 15:35:33,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 15:35:33,615 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 15:35:33,615 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 15:35:33,615 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 15:35:33,615 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 15:35:33,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 15:35:33,616 INFO L82 PathProgramCache]: Analyzing trace with hash -29523470, now seen corresponding path program 3 times [2021-03-11 15:35:33,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 15:35:33,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574408724] [2021-03-11 15:35:33,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 15:35:33,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 15:35:33,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:35:33,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 15:35:34,072 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 436 DAG size of output: 219 [2021-03-11 15:35:34,074 INFO L142 QuantifierPusher]: treesize reduction 99398, result has 10.6 percent of original size [2021-03-11 15:35:34,109 INFO L147 QuantifierPusher]: treesize reduction 7815, result has 33.8 percent of original size 3985 [2021-03-11 15:35:34,643 WARN L205 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 46 [2021-03-11 15:35:34,813 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 161 [2021-03-11 15:35:34,814 INFO L142 QuantifierPusher]: treesize reduction 41375, result has 12.0 percent of original size [2021-03-11 15:35:34,846 INFO L147 QuantifierPusher]: treesize reduction 4197, result has 25.6 percent of original size 1445 [2021-03-11 15:35:35,449 WARN L205 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 70 [2021-03-11 15:35:35,454 INFO L142 QuantifierPusher]: treesize reduction 638, result has 7.4 percent of original size [2021-03-11 15:35:35,454 INFO L147 QuantifierPusher]: treesize reduction 10, result has 80.4 percent of original size 41 [2021-03-11 15:35:35,497 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 15:35:35,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574408724] [2021-03-11 15:35:35,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 15:35:35,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 15:35:35,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305154700] [2021-03-11 15:35:35,498 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 15:35:35,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 15:35:35,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 15:35:35,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 15:35:35,500 INFO L87 Difference]: Start difference. First operand 19 states and 26 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 15:35:35,639 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-03-11 15:35:35,804 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-03-11 15:35:35,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 15:35:35,811 INFO L93 Difference]: Finished difference Result 28 states and 33 transitions. [2021-03-11 15:35:35,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 15:35:35,812 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 10 [2021-03-11 15:35:35,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 15:35:35,812 INFO L225 Difference]: With dead ends: 28 [2021-03-11 15:35:35,812 INFO L226 Difference]: Without dead ends: 20 [2021-03-11 15:35:35,812 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1454.8ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-11 15:35:35,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-03-11 15:35:35,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 15. [2021-03-11 15:35:35,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 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 15:35:35,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2021-03-11 15:35:35,814 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 18 transitions. Word has length 10 [2021-03-11 15:35:35,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 15:35:35,814 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 18 transitions. [2021-03-11 15:35:35,814 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 15:35:35,815 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2021-03-11 15:35:35,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 15:35:35,815 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 15:35:35,815 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 15:35:35,815 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 15:35:35,815 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 15:35:35,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 15:35:35,815 INFO L82 PathProgramCache]: Analyzing trace with hash -1774383514, now seen corresponding path program 4 times [2021-03-11 15:35:35,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 15:35:35,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391341788] [2021-03-11 15:35:35,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 15:35:35,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 15:35:35,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:35:35,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 15:35:36,121 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 380 DAG size of output: 264 [2021-03-11 15:35:36,122 INFO L142 QuantifierPusher]: treesize reduction 104073, result has 4.9 percent of original size [2021-03-11 15:35:36,139 INFO L147 QuantifierPusher]: treesize reduction 612, result has 88.7 percent of original size 4786 [2021-03-11 15:35:36,814 WARN L205 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 63 [2021-03-11 15:35:36,830 INFO L142 QuantifierPusher]: treesize reduction 2983, result has 28.6 percent of original size [2021-03-11 15:35:36,835 INFO L147 QuantifierPusher]: treesize reduction 386, result has 67.7 percent of original size 809 [2021-03-11 15:35:37,194 WARN L205 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 62 [2021-03-11 15:35:37,199 INFO L142 QuantifierPusher]: treesize reduction 1147, result has 13.2 percent of original size [2021-03-11 15:35:37,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 174 [2021-03-11 15:35:37,276 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 15:35:37,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391341788] [2021-03-11 15:35:37,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 15:35:37,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 15:35:37,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135682272] [2021-03-11 15:35:37,277 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 15:35:37,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 15:35:37,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 15:35:37,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 15:35:37,278 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 15:35:37,405 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-03-11 15:35:37,543 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-03-11 15:35:37,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 15:35:37,552 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2021-03-11 15:35:37,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 15:35:37,552 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 10 [2021-03-11 15:35:37,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 15:35:37,553 INFO L225 Difference]: With dead ends: 20 [2021-03-11 15:35:37,553 INFO L226 Difference]: Without dead ends: 13 [2021-03-11 15:35:37,553 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1356.1ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-11 15:35:37,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-03-11 15:35:37,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-03-11 15:35:37,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 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 15:35:37,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2021-03-11 15:35:37,554 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 10 [2021-03-11 15:35:37,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 15:35:37,555 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2021-03-11 15:35:37,555 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 15:35:37,555 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2021-03-11 15:35:37,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 15:35:37,555 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 15:35:37,555 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 15:35:37,555 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 15:35:37,555 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 15:35:37,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 15:35:37,556 INFO L82 PathProgramCache]: Analyzing trace with hash 817106226, now seen corresponding path program 5 times [2021-03-11 15:35:37,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 15:35:37,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000679712] [2021-03-11 15:35:37,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 15:35:37,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 15:35:37,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:35:37,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 15:35:37,662 INFO L142 QuantifierPusher]: treesize reduction 17560, result has 25.0 percent of original size [2021-03-11 15:35:37,678 INFO L147 QuantifierPusher]: treesize reduction 2578, result has 56.0 percent of original size 3279 [2021-03-11 15:35:38,150 WARN L205 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 61 [2021-03-11 15:35:38,168 INFO L142 QuantifierPusher]: treesize reduction 1219, result has 36.3 percent of original size [2021-03-11 15:35:38,172 INFO L147 QuantifierPusher]: treesize reduction 80, result has 88.5 percent of original size 616 [2021-03-11 15:35:38,472 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 69 [2021-03-11 15:35:38,475 INFO L142 QuantifierPusher]: treesize reduction 230, result has 36.3 percent of original size [2021-03-11 15:35:38,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 131 [2021-03-11 15:35:38,540 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 15:35:38,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000679712] [2021-03-11 15:35:38,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 15:35:38,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 15:35:38,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953918641] [2021-03-11 15:35:38,540 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 15:35:38,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 15:35:38,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 15:35:38,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 15:35:38,541 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 15:35:38,682 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-03-11 15:35:38,840 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2021-03-11 15:35:38,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 15:35:38,844 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2021-03-11 15:35:38,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 15:35:38,844 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 10 [2021-03-11 15:35:38,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 15:35:38,845 INFO L225 Difference]: With dead ends: 17 [2021-03-11 15:35:38,845 INFO L226 Difference]: Without dead ends: 12 [2021-03-11 15:35:38,845 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1114.9ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-11 15:35:38,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-03-11 15:35:38,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-03-11 15:35:38,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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 15:35:38,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2021-03-11 15:35:38,846 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2021-03-11 15:35:38,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 15:35:38,846 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2021-03-11 15:35:38,847 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 15:35:38,847 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2021-03-11 15:35:38,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 15:35:38,847 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 15:35:38,847 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 15:35:38,847 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 15:35:38,847 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 15:35:38,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 15:35:38,847 INFO L82 PathProgramCache]: Analyzing trace with hash 900223116, now seen corresponding path program 6 times [2021-03-11 15:35:38,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 15:35:38,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001176350] [2021-03-11 15:35:38,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 15:35:38,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 15:35:38,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:35:38,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 15:35:38,943 INFO L142 QuantifierPusher]: treesize reduction 7677, result has 14.0 percent of original size [2021-03-11 15:35:38,947 INFO L147 QuantifierPusher]: treesize reduction 352, result has 71.9 percent of original size 899 [2021-03-11 15:35:39,188 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 54 [2021-03-11 15:35:39,192 INFO L142 QuantifierPusher]: treesize reduction 522, result has 47.3 percent of original size [2021-03-11 15:35:39,197 INFO L147 QuantifierPusher]: treesize reduction 125, result has 73.3 percent of original size 344 [2021-03-11 15:35:39,468 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 71 [2021-03-11 15:35:39,470 INFO L142 QuantifierPusher]: treesize reduction 78, result has 63.0 percent of original size [2021-03-11 15:35:39,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-03-11 15:35:39,532 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 15:35:39,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001176350] [2021-03-11 15:35:39,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 15:35:39,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 15:35:39,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441453105] [2021-03-11 15:35:39,533 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 15:35:39,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 15:35:39,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 15:35:39,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 15:35:39,534 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 15:35:39,658 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-03-11 15:35:39,789 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-03-11 15:35:39,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 15:35:39,790 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2021-03-11 15:35:39,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 15:35:39,790 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 10 [2021-03-11 15:35:39,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 15:35:39,791 INFO L225 Difference]: With dead ends: 11 [2021-03-11 15:35:39,791 INFO L226 Difference]: Without dead ends: 0 [2021-03-11 15:35:39,791 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 814.2ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-11 15:35:39,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-11 15:35:39,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-11 15:35:39,791 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 15:35:39,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-11 15:35:39,791 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2021-03-11 15:35:39,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 15:35:39,791 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-11 15:35:39,791 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 15:35:39,792 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-11 15:35:39,792 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-11 15:35:39,792 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 15:35:39,794 INFO L202 PluginConnector]: Adding new model container-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 03:35:39 BasicIcfg [2021-03-11 15:35:39,794 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 15:35:39,795 INFO L168 Benchmark]: Toolchain (without parser) took 9869.48 ms. Allocated memory was 255.9 MB in the beginning and 645.9 MB in the end (delta: 390.1 MB). Free memory was 236.4 MB in the beginning and 507.3 MB in the end (delta: -270.9 MB). Peak memory consumption was 120.8 MB. Max. memory is 16.0 GB. [2021-03-11 15:35:39,795 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 15:35:39,796 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.63 ms. Allocated memory is still 255.9 MB. Free memory was 236.1 MB in the beginning and 234.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 15:35:39,796 INFO L168 Benchmark]: Boogie Preprocessor took 14.40 ms. Allocated memory is still 255.9 MB. Free memory was 234.5 MB in the beginning and 233.6 MB in the end (delta: 854.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 15:35:39,797 INFO L168 Benchmark]: RCFGBuilder took 333.74 ms. Allocated memory is still 255.9 MB. Free memory was 233.5 MB in the beginning and 232.7 MB in the end (delta: 833.8 kB). Peak memory consumption was 18.3 MB. Max. memory is 16.0 GB. [2021-03-11 15:35:39,797 INFO L168 Benchmark]: TraceAbstraction took 9493.45 ms. Allocated memory was 255.9 MB in the beginning and 645.9 MB in the end (delta: 390.1 MB). Free memory was 232.0 MB in the beginning and 507.3 MB in the end (delta: -275.3 MB). Peak memory consumption was 115.1 MB. Max. memory is 16.0 GB. [2021-03-11 15:35:39,798 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 0.10 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 21.63 ms. Allocated memory is still 255.9 MB. Free memory was 236.1 MB in the beginning and 234.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 14.40 ms. Allocated memory is still 255.9 MB. Free memory was 234.5 MB in the beginning and 233.6 MB in the end (delta: 854.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 333.74 ms. Allocated memory is still 255.9 MB. Free memory was 233.5 MB in the beginning and 232.7 MB in the end (delta: 833.8 kB). Peak memory consumption was 18.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 9493.45 ms. Allocated memory was 255.9 MB in the beginning and 645.9 MB in the end (delta: 390.1 MB). Free memory was 232.0 MB in the beginning and 507.3 MB in the end (delta: -275.3 MB). Peak memory consumption was 115.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 236.0ms, 29 PlacesBefore, 24 PlacesAfterwards, 19 TransitionsBefore, 14 TransitionsAfterwards, 48 CoEnabledTransitionPairs, 2 FixpointIterations, 3 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, 54 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 54, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 34, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 34, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 54, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 34, unknown conditional: 0, unknown unconditional: 34] , Statistics on independence cache: Total cache size (in pairs): 12, Positive cache size: 12, Positive conditional cache size: 0, Positive unconditional cache size: 12, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - PositiveResult [Line: 68]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9437.8ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 14.8ms, AutomataDifference: 1890.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 271.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 68 SDtfs, 91 SDslu, 106 SDs, 0 SdLazy, 80 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 131.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6638.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 19.1ms AutomataMinimizationTime, 6 MinimizatonAttempts, 15 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 10.1ms SsaConstructionTime, 171.3ms SatisfiabilityAnalysisTime, 6956.4ms InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 3935 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...