/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/pthread-wmm/safe035_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 23:39:26,093 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 23:39:26,096 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 23:39:26,132 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 23:39:26,133 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 23:39:26,134 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 23:39:26,136 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 23:39:26,139 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 23:39:26,141 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 23:39:26,143 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 23:39:26,144 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 23:39:26,145 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 23:39:26,146 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 23:39:26,147 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 23:39:26,149 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 23:39:26,150 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 23:39:26,152 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 23:39:26,153 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 23:39:26,155 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 23:39:26,158 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 23:39:26,160 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 23:39:26,162 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 23:39:26,163 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 23:39:26,164 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 23:39:26,168 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-06 23:39:26,191 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 23:39:26,193 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 23:39:26,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 23:39:26,194 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 23:39:26,243 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 23:39:26,243 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 23:39:26,245 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 23:39:26,245 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 23:39:26,245 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 23:39:26,246 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 23:39:26,248 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 23:39:26,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 23:39:26,248 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 23:39:26,249 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 23:39:26,250 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 23:39:26,250 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 23:39:26,250 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 23:39:26,250 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 23:39:26,251 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 23:39:26,251 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 23:39:26,251 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 23:39:26,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 23:39:26,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 23:39:26,252 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 23:39:26,252 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 23:39:26,252 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 23:39:26,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 23:39:26,252 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 23:39:26,253 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 23:39:26,253 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-bitabs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 23:39:26,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 23:39:26,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 23:39:26,728 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 23:39:26,730 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 23:39:26,730 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 23:39:26,731 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe035_pso.opt.i [2021-01-06 23:39:26,824 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/10a79643d/dba076647c2949889708a02793d453b7/FLAGd29ae4e34 [2021-01-06 23:39:27,633 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 23:39:27,634 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_pso.opt.i [2021-01-06 23:39:27,652 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/10a79643d/dba076647c2949889708a02793d453b7/FLAGd29ae4e34 [2021-01-06 23:39:27,815 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/10a79643d/dba076647c2949889708a02793d453b7 [2021-01-06 23:39:27,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 23:39:27,822 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 23:39:27,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 23:39:27,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 23:39:27,829 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 23:39:27,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:39:27" (1/1) ... [2021-01-06 23:39:27,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ffa8743 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:27, skipping insertion in model container [2021-01-06 23:39:27,833 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:39:27" (1/1) ... [2021-01-06 23:39:27,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 23:39:27,921 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 23:39:28,176 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_pso.opt.i[949,962] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p1_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p2_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2021-01-06 23:39:28,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 23:39:28,446 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 23:39:28,463 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_pso.opt.i[949,962] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p1_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p2_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2021-01-06 23:39:28,542 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 23:39:28,659 INFO L208 MainTranslator]: Completed translation [2021-01-06 23:39:28,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:28 WrapperNode [2021-01-06 23:39:28,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 23:39:28,662 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 23:39:28,663 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 23:39:28,663 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 23:39:28,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:28" (1/1) ... [2021-01-06 23:39:28,715 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:28" (1/1) ... [2021-01-06 23:39:28,756 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 23:39:28,759 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 23:39:28,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 23:39:28,760 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 23:39:28,770 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:28" (1/1) ... [2021-01-06 23:39:28,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:28" (1/1) ... [2021-01-06 23:39:28,785 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:28" (1/1) ... [2021-01-06 23:39:28,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:28" (1/1) ... [2021-01-06 23:39:28,803 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:28" (1/1) ... [2021-01-06 23:39:28,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:28" (1/1) ... [2021-01-06 23:39:28,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:28" (1/1) ... [2021-01-06 23:39:28,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 23:39:28,819 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 23:39:28,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 23:39:28,819 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 23:39:28,822 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:28" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/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 [2021-01-06 23:39:28,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-06 23:39:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-06 23:39:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 23:39:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-06 23:39:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-06 23:39:28,946 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-06 23:39:28,947 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-06 23:39:28,947 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-06 23:39:28,948 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-06 23:39:28,948 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-06 23:39:28,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 23:39:28,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-06 23:39:28,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 23:39:28,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 23:39:28,952 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-06 23:39:29,522 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 23:39:29,523 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-01-06 23:39:29,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:39:29 BoogieIcfgContainer [2021-01-06 23:39:29,525 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 23:39:29,528 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 23:39:29,528 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 23:39:29,531 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 23:39:29,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 11:39:27" (1/3) ... [2021-01-06 23:39:29,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6184265f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:39:29, skipping insertion in model container [2021-01-06 23:39:29,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:28" (2/3) ... [2021-01-06 23:39:29,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6184265f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:39:29, skipping insertion in model container [2021-01-06 23:39:29,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:39:29" (3/3) ... [2021-01-06 23:39:29,535 INFO L111 eAbstractionObserver]: Analyzing ICFG safe035_pso.opt.i [2021-01-06 23:39:29,544 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-06 23:39:29,545 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 23:39:29,550 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 23:39:29,551 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-06 23:39:29,591 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,591 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,591 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,592 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,592 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,592 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,593 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,593 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,593 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,594 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,594 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,594 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,595 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,595 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,595 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,595 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,596 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,596 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,596 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,596 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,597 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,597 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,598 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,598 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,598 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,599 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,599 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,599 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,599 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,600 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,600 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,600 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,601 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,601 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,601 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,601 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,604 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,604 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,604 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,605 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,611 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,612 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,612 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,612 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,615 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,616 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,616 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,616 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:29,619 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-06 23:39:29,641 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-06 23:39:29,665 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 23:39:29,665 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 23:39:29,665 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 23:39:29,665 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 23:39:29,665 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 23:39:29,666 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 23:39:29,666 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 23:39:29,666 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 23:39:29,679 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-01-06 23:39:29,681 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 75 transitions, 165 flow [2021-01-06 23:39:29,684 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 75 transitions, 165 flow [2021-01-06 23:39:29,686 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2021-01-06 23:39:29,734 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2021-01-06 23:39:29,734 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-01-06 23:39:29,739 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-01-06 23:39:29,742 INFO L116 LiptonReduction]: Number of co-enabled transitions 1296 [2021-01-06 23:39:32,348 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-01-06 23:39:33,147 WARN L197 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-01-06 23:39:33,259 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-01-06 23:39:33,494 WARN L197 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-01-06 23:39:33,609 INFO L131 LiptonReduction]: Checked pairs total: 2511 [2021-01-06 23:39:33,610 INFO L133 LiptonReduction]: Total number of compositions: 63 [2021-01-06 23:39:33,616 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2021-01-06 23:39:33,647 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2021-01-06 23:39:33,649 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2021-01-06 23:39:33,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-01-06 23:39:33,656 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:39:33,657 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:39:33,658 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:39:33,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:39:33,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1857977145, now seen corresponding path program 1 times [2021-01-06 23:39:33,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:39:33,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647357583] [2021-01-06 23:39:33,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:39:33,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:39:33,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:39:33,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647357583] [2021-01-06 23:39:33,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:39:33,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:39:33,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460604877] [2021-01-06 23:39:33,863 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-06 23:39:33,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:39:33,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-06 23:39:33,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 23:39:33,882 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2021-01-06 23:39:33,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:39:33,922 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2021-01-06 23:39:33,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-06 23:39:33,924 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2021-01-06 23:39:33,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:39:33,942 INFO L225 Difference]: With dead ends: 362 [2021-01-06 23:39:33,942 INFO L226 Difference]: Without dead ends: 298 [2021-01-06 23:39:33,944 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 23:39:33,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2021-01-06 23:39:34,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2021-01-06 23:39:34,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2021-01-06 23:39:34,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2021-01-06 23:39:34,022 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2021-01-06 23:39:34,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:39:34,023 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2021-01-06 23:39:34,023 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-06 23:39:34,024 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2021-01-06 23:39:34,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 23:39:34,025 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:39:34,026 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:39:34,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 23:39:34,026 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:39:34,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:39:34,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1762722497, now seen corresponding path program 1 times [2021-01-06 23:39:34,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:39:34,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290961925] [2021-01-06 23:39:34,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:39:34,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:39:34,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:39:34,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290961925] [2021-01-06 23:39:34,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:39:34,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:39:34,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844009231] [2021-01-06 23:39:34,233 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:39:34,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:39:34,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:39:34,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:39:34,234 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2021-01-06 23:39:34,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:39:34,345 INFO L93 Difference]: Finished difference Result 552 states and 1504 transitions. [2021-01-06 23:39:34,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:39:34,346 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2021-01-06 23:39:34,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:39:34,350 INFO L225 Difference]: With dead ends: 552 [2021-01-06 23:39:34,351 INFO L226 Difference]: Without dead ends: 382 [2021-01-06 23:39:34,351 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:39:34,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2021-01-06 23:39:34,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 298. [2021-01-06 23:39:34,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2021-01-06 23:39:34,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 792 transitions. [2021-01-06 23:39:34,385 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 792 transitions. Word has length 9 [2021-01-06 23:39:34,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:39:34,386 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 792 transitions. [2021-01-06 23:39:34,386 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:39:34,386 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 792 transitions. [2021-01-06 23:39:34,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-01-06 23:39:34,388 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:39:34,388 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:39:34,389 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 23:39:34,389 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:39:34,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:39:34,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1189149087, now seen corresponding path program 1 times [2021-01-06 23:39:34,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:39:34,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699083296] [2021-01-06 23:39:34,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:39:34,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:39:34,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:39:34,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699083296] [2021-01-06 23:39:34,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:39:34,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:39:34,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303906597] [2021-01-06 23:39:34,544 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:39:34,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:39:34,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:39:34,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:39:34,549 INFO L87 Difference]: Start difference. First operand 298 states and 792 transitions. Second operand 5 states. [2021-01-06 23:39:34,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:39:34,616 INFO L93 Difference]: Finished difference Result 338 states and 836 transitions. [2021-01-06 23:39:34,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 23:39:34,616 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2021-01-06 23:39:34,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:39:34,618 INFO L225 Difference]: With dead ends: 338 [2021-01-06 23:39:34,619 INFO L226 Difference]: Without dead ends: 222 [2021-01-06 23:39:34,619 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-01-06 23:39:34,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2021-01-06 23:39:34,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 182. [2021-01-06 23:39:34,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2021-01-06 23:39:34,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 468 transitions. [2021-01-06 23:39:34,632 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 468 transitions. Word has length 10 [2021-01-06 23:39:34,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:39:34,632 INFO L481 AbstractCegarLoop]: Abstraction has 182 states and 468 transitions. [2021-01-06 23:39:34,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:39:34,632 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 468 transitions. [2021-01-06 23:39:34,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-01-06 23:39:34,634 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:39:34,634 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:39:34,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 23:39:34,635 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:39:34,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:39:34,635 INFO L82 PathProgramCache]: Analyzing trace with hash 681758540, now seen corresponding path program 1 times [2021-01-06 23:39:34,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:39:34,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800009661] [2021-01-06 23:39:34,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:39:34,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:39:34,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:39:34,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800009661] [2021-01-06 23:39:34,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:39:34,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:39:34,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424833617] [2021-01-06 23:39:34,738 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 23:39:34,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:39:34,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 23:39:34,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:39:34,739 INFO L87 Difference]: Start difference. First operand 182 states and 468 transitions. Second operand 3 states. [2021-01-06 23:39:34,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:39:34,754 INFO L93 Difference]: Finished difference Result 146 states and 331 transitions. [2021-01-06 23:39:34,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 23:39:34,755 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2021-01-06 23:39:34,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:39:34,756 INFO L225 Difference]: With dead ends: 146 [2021-01-06 23:39:34,756 INFO L226 Difference]: Without dead ends: 146 [2021-01-06 23:39:34,757 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:39:34,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-01-06 23:39:34,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2021-01-06 23:39:34,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2021-01-06 23:39:34,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 331 transitions. [2021-01-06 23:39:34,764 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 331 transitions. Word has length 12 [2021-01-06 23:39:34,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:39:34,764 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 331 transitions. [2021-01-06 23:39:34,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 23:39:34,765 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 331 transitions. [2021-01-06 23:39:34,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-06 23:39:34,766 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:39:34,766 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:39:34,767 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 23:39:34,767 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:39:34,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:39:34,767 INFO L82 PathProgramCache]: Analyzing trace with hash -2034044923, now seen corresponding path program 1 times [2021-01-06 23:39:34,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:39:34,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593223713] [2021-01-06 23:39:34,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:39:34,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:39:34,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:39:34,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593223713] [2021-01-06 23:39:34,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:39:34,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:39:34,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109376456] [2021-01-06 23:39:34,821 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:39:34,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:39:34,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:39:34,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:39:34,822 INFO L87 Difference]: Start difference. First operand 146 states and 331 transitions. Second operand 4 states. [2021-01-06 23:39:34,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:39:34,842 INFO L93 Difference]: Finished difference Result 101 states and 200 transitions. [2021-01-06 23:39:34,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 23:39:34,843 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2021-01-06 23:39:34,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:39:34,844 INFO L225 Difference]: With dead ends: 101 [2021-01-06 23:39:34,844 INFO L226 Difference]: Without dead ends: 101 [2021-01-06 23:39:34,844 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:39:34,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-01-06 23:39:34,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 97. [2021-01-06 23:39:34,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2021-01-06 23:39:34,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 190 transitions. [2021-01-06 23:39:34,849 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 190 transitions. Word has length 13 [2021-01-06 23:39:34,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:39:34,849 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 190 transitions. [2021-01-06 23:39:34,849 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:39:34,849 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 190 transitions. [2021-01-06 23:39:34,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-06 23:39:34,850 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:39:34,851 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:39:34,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 23:39:34,851 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:39:34,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:39:34,852 INFO L82 PathProgramCache]: Analyzing trace with hash -666358640, now seen corresponding path program 1 times [2021-01-06 23:39:34,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:39:34,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130160997] [2021-01-06 23:39:34,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:39:34,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:39:34,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:39:34,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130160997] [2021-01-06 23:39:34,911 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:39:34,911 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 23:39:34,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178980378] [2021-01-06 23:39:34,912 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:39:34,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:39:34,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:39:34,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:39:34,913 INFO L87 Difference]: Start difference. First operand 97 states and 190 transitions. Second operand 5 states. [2021-01-06 23:39:34,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:39:34,970 INFO L93 Difference]: Finished difference Result 181 states and 338 transitions. [2021-01-06 23:39:34,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:39:34,971 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2021-01-06 23:39:34,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:39:34,972 INFO L225 Difference]: With dead ends: 181 [2021-01-06 23:39:34,972 INFO L226 Difference]: Without dead ends: 140 [2021-01-06 23:39:34,972 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-01-06 23:39:34,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-01-06 23:39:34,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 97. [2021-01-06 23:39:34,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2021-01-06 23:39:34,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 186 transitions. [2021-01-06 23:39:34,977 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 186 transitions. Word has length 15 [2021-01-06 23:39:34,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:39:34,977 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 186 transitions. [2021-01-06 23:39:34,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:39:34,978 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 186 transitions. [2021-01-06 23:39:34,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-06 23:39:34,978 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:39:34,979 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:39:34,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-06 23:39:34,979 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:39:34,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:39:34,980 INFO L82 PathProgramCache]: Analyzing trace with hash -574188510, now seen corresponding path program 2 times [2021-01-06 23:39:34,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:39:34,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111346174] [2021-01-06 23:39:34,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:39:34,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:39:35,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:39:35,033 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111346174] [2021-01-06 23:39:35,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:39:35,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 23:39:35,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121771193] [2021-01-06 23:39:35,034 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:39:35,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:39:35,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:39:35,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:39:35,035 INFO L87 Difference]: Start difference. First operand 97 states and 186 transitions. Second operand 5 states. [2021-01-06 23:39:35,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:39:35,062 INFO L93 Difference]: Finished difference Result 77 states and 147 transitions. [2021-01-06 23:39:35,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:39:35,063 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2021-01-06 23:39:35,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:39:35,064 INFO L225 Difference]: With dead ends: 77 [2021-01-06 23:39:35,064 INFO L226 Difference]: Without dead ends: 69 [2021-01-06 23:39:35,064 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:39:35,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-01-06 23:39:35,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 65. [2021-01-06 23:39:35,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2021-01-06 23:39:35,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 123 transitions. [2021-01-06 23:39:35,067 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 123 transitions. Word has length 15 [2021-01-06 23:39:35,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:39:35,068 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 123 transitions. [2021-01-06 23:39:35,068 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:39:35,068 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 123 transitions. [2021-01-06 23:39:35,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-06 23:39:35,068 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:39:35,068 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:39:35,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-06 23:39:35,069 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:39:35,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:39:35,069 INFO L82 PathProgramCache]: Analyzing trace with hash -681441042, now seen corresponding path program 1 times [2021-01-06 23:39:35,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:39:35,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795006412] [2021-01-06 23:39:35,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:39:35,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:39:35,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:39:35,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795006412] [2021-01-06 23:39:35,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:39:35,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 23:39:35,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634856682] [2021-01-06 23:39:35,147 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 23:39:35,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:39:35,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 23:39:35,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-01-06 23:39:35,148 INFO L87 Difference]: Start difference. First operand 65 states and 123 transitions. Second operand 6 states. [2021-01-06 23:39:35,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:39:35,237 INFO L93 Difference]: Finished difference Result 129 states and 226 transitions. [2021-01-06 23:39:35,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-06 23:39:35,243 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2021-01-06 23:39:35,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:39:35,244 INFO L225 Difference]: With dead ends: 129 [2021-01-06 23:39:35,244 INFO L226 Difference]: Without dead ends: 51 [2021-01-06 23:39:35,245 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-01-06 23:39:35,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-01-06 23:39:35,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 47. [2021-01-06 23:39:35,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2021-01-06 23:39:35,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 76 transitions. [2021-01-06 23:39:35,247 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 76 transitions. Word has length 18 [2021-01-06 23:39:35,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:39:35,248 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 76 transitions. [2021-01-06 23:39:35,248 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 23:39:35,248 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 76 transitions. [2021-01-06 23:39:35,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-06 23:39:35,248 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:39:35,249 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:39:35,249 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-06 23:39:35,249 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:39:35,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:39:35,250 INFO L82 PathProgramCache]: Analyzing trace with hash 1665896384, now seen corresponding path program 2 times [2021-01-06 23:39:35,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:39:35,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393132006] [2021-01-06 23:39:35,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:39:35,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:39:35,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:39:35,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393132006] [2021-01-06 23:39:35,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:39:35,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 23:39:35,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054553160] [2021-01-06 23:39:35,382 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 23:39:35,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:39:35,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 23:39:35,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-01-06 23:39:35,383 INFO L87 Difference]: Start difference. First operand 47 states and 76 transitions. Second operand 6 states. [2021-01-06 23:39:35,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:39:35,429 INFO L93 Difference]: Finished difference Result 61 states and 98 transitions. [2021-01-06 23:39:35,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:39:35,430 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2021-01-06 23:39:35,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:39:35,431 INFO L225 Difference]: With dead ends: 61 [2021-01-06 23:39:35,431 INFO L226 Difference]: Without dead ends: 37 [2021-01-06 23:39:35,431 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-01-06 23:39:35,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-01-06 23:39:35,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-01-06 23:39:35,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2021-01-06 23:39:35,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2021-01-06 23:39:35,433 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2021-01-06 23:39:35,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:39:35,434 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2021-01-06 23:39:35,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 23:39:35,434 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2021-01-06 23:39:35,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-06 23:39:35,434 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:39:35,434 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:39:35,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-06 23:39:35,435 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:39:35,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:39:35,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1696595058, now seen corresponding path program 3 times [2021-01-06 23:39:35,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:39:35,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221566583] [2021-01-06 23:39:35,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:39:35,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:39:35,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:39:35,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221566583] [2021-01-06 23:39:35,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:39:35,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 23:39:35,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408549596] [2021-01-06 23:39:35,501 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:39:35,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:39:35,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:39:35,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:39:35,502 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 5 states. [2021-01-06 23:39:35,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:39:35,547 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2021-01-06 23:39:35,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:39:35,547 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2021-01-06 23:39:35,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:39:35,548 INFO L225 Difference]: With dead ends: 36 [2021-01-06 23:39:35,548 INFO L226 Difference]: Without dead ends: 0 [2021-01-06 23:39:35,548 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-01-06 23:39:35,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-01-06 23:39:35,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-01-06 23:39:35,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-01-06 23:39:35,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-01-06 23:39:35,549 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-01-06 23:39:35,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:39:35,549 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-01-06 23:39:35,549 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:39:35,550 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-01-06 23:39:35,550 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-06 23:39:35,550 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-06 23:39:35,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 11:39:35 BasicIcfg [2021-01-06 23:39:35,554 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 23:39:35,554 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 23:39:35,555 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 23:39:35,555 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 23:39:35,555 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:39:29" (3/4) ... [2021-01-06 23:39:35,559 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-01-06 23:39:35,566 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2021-01-06 23:39:35,566 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2021-01-06 23:39:35,566 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2021-01-06 23:39:35,571 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-01-06 23:39:35,572 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-01-06 23:39:35,572 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 23:39:35,572 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 23:39:35,614 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe035_pso.opt.i-witness.graphml [2021-01-06 23:39:35,614 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 23:39:35,616 INFO L168 Benchmark]: Toolchain (without parser) took 7793.87 ms. Allocated memory was 169.9 MB in the beginning and 224.4 MB in the end (delta: 54.5 MB). Free memory was 142.7 MB in the beginning and 94.3 MB in the end (delta: 48.4 MB). Peak memory consumption was 103.9 MB. Max. memory is 8.0 GB. [2021-01-06 23:39:35,616 INFO L168 Benchmark]: CDTParser took 0.67 ms. Allocated memory is still 169.9 MB. Free memory is still 143.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 23:39:35,617 INFO L168 Benchmark]: CACSL2BoogieTranslator took 836.75 ms. Allocated memory is still 169.9 MB. Free memory was 142.2 MB in the beginning and 111.3 MB in the end (delta: 31.0 MB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. [2021-01-06 23:39:35,617 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.15 ms. Allocated memory is still 169.9 MB. Free memory was 111.3 MB in the beginning and 109.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:39:35,618 INFO L168 Benchmark]: Boogie Preprocessor took 58.52 ms. Allocated memory is still 169.9 MB. Free memory was 109.2 MB in the beginning and 108.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 23:39:35,619 INFO L168 Benchmark]: RCFGBuilder took 706.99 ms. Allocated memory is still 169.9 MB. Free memory was 108.2 MB in the beginning and 85.6 MB in the end (delta: 22.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:39:35,619 INFO L168 Benchmark]: TraceAbstraction took 6026.28 ms. Allocated memory was 169.9 MB in the beginning and 224.4 MB in the end (delta: 54.5 MB). Free memory was 85.1 MB in the beginning and 96.9 MB in the end (delta: -11.8 MB). Peak memory consumption was 44.2 MB. Max. memory is 8.0 GB. [2021-01-06 23:39:35,620 INFO L168 Benchmark]: Witness Printer took 60.04 ms. Allocated memory is still 224.4 MB. Free memory was 96.9 MB in the beginning and 94.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:39:35,623 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.67 ms. Allocated memory is still 169.9 MB. Free memory is still 143.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 836.75 ms. Allocated memory is still 169.9 MB. Free memory was 142.2 MB in the beginning and 111.3 MB in the end (delta: 31.0 MB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 95.15 ms. Allocated memory is still 169.9 MB. Free memory was 111.3 MB in the beginning and 109.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 58.52 ms. Allocated memory is still 169.9 MB. Free memory was 109.2 MB in the beginning and 108.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 706.99 ms. Allocated memory is still 169.9 MB. Free memory was 108.2 MB in the beginning and 85.6 MB in the end (delta: 22.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6026.28 ms. Allocated memory was 169.9 MB in the beginning and 224.4 MB in the end (delta: 54.5 MB). Free memory was 85.1 MB in the beginning and 96.9 MB in the end (delta: -11.8 MB). Peak memory consumption was 44.2 MB. Max. memory is 8.0 GB. * Witness Printer took 60.04 ms. Allocated memory is still 224.4 MB. Free memory was 96.9 MB in the beginning and 94.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 845 VarBasedMoverChecksPositive, 39 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 32 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 68 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.9s, 83 PlacesBefore, 32 PlacesAfterwards, 75 TransitionsBefore, 23 TransitionsAfterwards, 1296 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 63 TotalNumberOfCompositions, 2511 MoverChecksTotal - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.8s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 209 SDtfs, 192 SDslu, 317 SDs, 0 SdLazy, 140 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 179 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 136 NumberOfCodeBlocks, 136 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 126 ConstructedInterpolants, 0 QuantifiedInterpolants, 7590 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...